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UNT / Decision Sciences / DSCI 2710 / What pertains to the long term movement of the time series?

What pertains to the long term movement of the time series?

What pertains to the long term movement of the time series?

Description

ol.lst-kix_roku8hgxnwx3-7.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-7 0}ol.lst-kix_wtrbusoo19t4-1.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-1 0}.lst-kix_wtrbusoo19t4-0 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-0}ol.lst-kix_lj6ivratewh7-3.start{counter-reset:lst-ctn-kix_lj6ivratewh7-3 0}.lst-kix_wtrbusoo19t4-2 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-2}.lst-kix_lj6ivratewh7-1 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-1}.lst-kix_967surdrqxcj-4 > li{counter-increment:lst-ctn-kix_967surdrqxcj-4}.lst-kix_roku8hgxnwx3-3 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-3}.lst-kix_wtrbusoo19t4-2 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-2,lower-roman) ". "}.lst-kix_wtrbusoo19t4-3 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-3,decimal) ". "}.lst-kix_967surdrqxcj-8 > li{counter-increment:lst-ctn-kix_967surdrqxcj-8}.lst-kix_wtrbusoo19t4-1 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-1,lower-latin) ". "}.lst-kix_wtrbusoo19t4-5 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-5,lower-roman) ". "}.lst-kix_967surdrqxcj-2 > li{counter-increment:lst-ctn-kix_967surdrqxcj-2}ol.lst-kix_967surdrqxcj-5.start{counter-reset:lst-ctn-kix_967surdrqxcj-5 0}.lst-kix_lj6ivratewh7-3 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-3}.lst-kix_wtrbusoo19t4-4 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-4,lower-latin) ". "}.lst-kix_wtrbusoo19t4-4 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-4}ol.lst-kix_roku8hgxnwx3-1.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-1 0}.lst-kix_roku8hgxnwx3-8 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-8}.lst-kix_wtrbusoo19t4-6 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-6,decimal) ". "}.lst-kix_wtrbusoo19t4-7 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-7,lower-latin) ". "}.lst-kix_wtrbusoo19t4-8 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-8,lower-roman) ". "}ol.lst-kix_lj6ivratewh7-4.start{counter-reset:lst-ctn-kix_lj6ivratewh7-4 0}ol.lst-kix_wtrbusoo19t4-5{list-style-type:none}ol.lst-kix_wtrbusoo19t4-4{list-style-type:none}ol.lst-kix_wtrbusoo19t4-7{list-style-type:none}ol.lst-kix_wtrbusoo19t4-6{list-style-type:none}ol.lst-kix_wtrbusoo19t4-8{list-style-type:none}ol.lst-kix_967surdrqxcj-6.start{counter-reset:lst-ctn-kix_967surdrqxcj-6 0}ol.lst-kix_roku8hgxnwx3-8.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-8 0}ol.lst-kix_wtrbusoo19t4-1{list-style-type:none}ol.lst-kix_wtrbusoo19t4-0{list-style-type:none}ol.lst-kix_roku8hgxnwx3-2.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-2 0}ol.lst-kix_wtrbusoo19t4-3{list-style-type:none}ol.lst-kix_wtrbusoo19t4-2{list-style-type:none}ol.lst-kix_967surdrqxcj-0.start{counter-reset:lst-ctn-kix_967surdrqxcj-0 0}.lst-kix_wtrbusoo19t4-0 > li:before{content:"" counter(lst-ctn-kix_wtrbusoo19t4-0,decimal) ". "}.lst-kix_e8rayn9knftr-7 > li:before{content:"- "}ol.lst-kix_lj6ivratewh7-7{list-style-type:none}ol.lst-kix_lj6ivratewh7-6{list-style-type:none}.lst-kix_e8rayn9knftr-5 > li:before{content:"- "}ol.lst-kix_lj6ivratewh7-8{list-style-type:none}ul.lst-kix_e8rayn9knftr-4{list-style-type:none}ul.lst-kix_e8rayn9knftr-5{list-style-type:none}.lst-kix_wtrbusoo19t4-7 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-7}ul.lst-kix_e8rayn9knftr-2{list-style-type:none}ul.lst-kix_e8rayn9knftr-3{list-style-type:none}ul.lst-kix_e8rayn9knftr-8{list-style-type:none}.lst-kix_e8rayn9knftr-1 > li:before{content:"- "}ul.lst-kix_e8rayn9knftr-6{list-style-type:none}ul.lst-kix_e8rayn9knftr-7{list-style-type:none}.lst-kix_wtrbusoo19t4-6 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-6}.lst-kix_e8rayn9knftr-3 > li:before{content:"- "}.lst-kix_lj6ivratewh7-7 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-7}.lst-kix_roku8hgxnwx3-5 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-5}ol.lst-kix_967surdrqxcj-4.start{counter-reset:lst-ctn-kix_967surdrqxcj-4 0}ul.lst-kix_dgovgxnxaui1-0{list-style-type:none}ul.lst-kix_dgovgxnxaui1-1{list-style-type:none}ul.lst-kix_dgovgxnxaui1-2{list-style-type:none}ul.lst-kix_dgovgxnxaui1-3{list-style-type:none}ul.lst-kix_dgovgxnxaui1-4{list-style-type:none}.lst-kix_wtrbusoo19t4-5 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-5}ul.lst-kix_dgovgxnxaui1-5{list-style-type:none}ul.lst-kix_dgovgxnxaui1-6{list-style-type:none}ul.lst-kix_dgovgxnxaui1-7{list-style-type:none}ul.lst-kix_4lca3ugp3nxe-8{list-style-type:none}ul.lst-kix_dgovgxnxaui1-8{list-style-type:none}ol.lst-kix_967surdrqxcj-1.start{counter-reset:lst-ctn-kix_967surdrqxcj-1 0}ul.lst-kix_e8rayn9knftr-0{list-style-type:none}.lst-kix_dgovgxnxaui1-7 > li:before{content:"○ "}ul.lst-kix_e8rayn9knftr-1{list-style-type:none}.lst-kix_967surdrqxcj-1 > li{counter-increment:lst-ctn-kix_967surdrqxcj-1}.lst-kix_roku8hgxnwx3-4 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-4,lower-latin) ". "}.lst-kix_dgovgxnxaui1-1 > li:before{content:"○ "}ol.lst-kix_wtrbusoo19t4-2.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-2 0}.lst-kix_roku8hgxnwx3-6 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-6,decimal) ". "}ol.lst-kix_roku8hgxnwx3-0.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-0 0}ul.lst-kix_4lca3ugp3nxe-7{list-style-type:none}.lst-kix_dgovgxnxaui1-5 > li:before{content:"■ "}ul.lst-kix_4lca3ugp3nxe-6{list-style-type:none}ul.lst-kix_4lca3ugp3nxe-5{list-style-type:none}ul.lst-kix_4lca3ugp3nxe-4{list-style-type:none}ul.lst-kix_4lca3ugp3nxe-3{list-style-type:none}.lst-kix_dgovgxnxaui1-3 > li:before{content:"● "}ul.lst-kix_4lca3ugp3nxe-2{list-style-type:none}ul.lst-kix_4lca3ugp3nxe-1{list-style-type:none}.lst-kix_roku8hgxnwx3-8 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-8,lower-roman) ". "}ul.lst-kix_4lca3ugp3nxe-0{list-style-type:none}.lst-kix_lj6ivratewh7-2 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-2,lower-roman) ". "}.lst-kix_lj6ivratewh7-4 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-4,lower-latin) ". "}.lst-kix_lj6ivratewh7-6 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-6,decimal) ". "}ol.lst-kix_967surdrqxcj-2.start{counter-reset:lst-ctn-kix_967surdrqxcj-2 0}ul.lst-kix_jwatgvl0uxpq-0{list-style-type:none}ul.lst-kix_jwatgvl0uxpq-1{list-style-type:none}.lst-kix_roku8hgxnwx3-2 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-2,lower-roman) ". "}ul.lst-kix_jwatgvl0uxpq-8{list-style-type:none}ul.lst-kix_jwatgvl0uxpq-6{list-style-type:none}ul.lst-kix_jwatgvl0uxpq-7{list-style-type:none}.lst-kix_lj6ivratewh7-0 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-0,decimal) ". "}ol.lst-kix_lj6ivratewh7-8.start{counter-reset:lst-ctn-kix_lj6ivratewh7-8 0}ul.lst-kix_jwatgvl0uxpq-4{list-style-type:none}ul.lst-kix_jwatgvl0uxpq-5{list-style-type:none}ul.lst-kix_jwatgvl0uxpq-2{list-style-type:none}.lst-kix_roku8hgxnwx3-0 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-0,decimal) ". "}ul.lst-kix_jwatgvl0uxpq-3{list-style-type:none}ol.lst-kix_967surdrqxcj-2{list-style-type:none}ol.lst-kix_967surdrqxcj-1{list-style-type:none}ol.lst-kix_967surdrqxcj-4{list-style-type:none}ol.lst-kix_967surdrqxcj-3{list-style-type:none}ol.lst-kix_967surdrqxcj-0{list-style-type:none}ol.lst-kix_wtrbusoo19t4-0.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-0 0}.lst-kix_967surdrqxcj-0 > li{counter-increment:lst-ctn-kix_967surdrqxcj-0}ol.lst-kix_lj6ivratewh7-7.start{counter-reset:lst-ctn-kix_lj6ivratewh7-7 0}.lst-kix_lj6ivratewh7-8 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-8}.lst-kix_967surdrqxcj-6 > li{counter-increment:lst-ctn-kix_967surdrqxcj-6}.lst-kix_lj6ivratewh7-2 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-2}ol.lst-kix_967surdrqxcj-3.start{counter-reset:lst-ctn-kix_967surdrqxcj-3 0}.lst-kix_roku8hgxnwx3-4 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-4}.lst-kix_lj6ivratewh7-8 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-8,lower-roman) ". "}ol.lst-kix_967surdrqxcj-6{list-style-type:none}ol.lst-kix_967surdrqxcj-5{list-style-type:none}ol.lst-kix_967surdrqxcj-8{list-style-type:none}ol.lst-kix_967surdrqxcj-7{list-style-type:none}.lst-kix_jwatgvl0uxpq-5 > li:before{content:"- "}.lst-kix_roku8hgxnwx3-0 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-0}.lst-kix_jwatgvl0uxpq-4 > li:before{content:"- "}.lst-kix_jwatgvl0uxpq-6 > li:before{content:"- "}.lst-kix_lj6ivratewh7-0 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-0}ol.lst-kix_wtrbusoo19t4-4.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-4 0}.lst-kix_jwatgvl0uxpq-1 > li:before{content:"- "}.lst-kix_jwatgvl0uxpq-2 > li:before{content:"- "}.lst-kix_967surdrqxcj-8 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-8,lower-roman) ". "}.lst-kix_jwatgvl0uxpq-3 > li:before{content:"- "}ol.lst-kix_lj6ivratewh7-0.start{counter-reset:lst-ctn-kix_lj6ivratewh7-0 0}ol.lst-kix_lj6ivratewh7-6.start{counter-reset:lst-ctn-kix_lj6ivratewh7-6 0}.lst-kix_jwatgvl0uxpq-8 > li:before{content:"- "}.lst-kix_jwatgvl0uxpq-7 > li:before{content:"- "}.lst-kix_967surdrqxcj-5 > li{counter-increment:lst-ctn-kix_967surdrqxcj-5}ol.lst-kix_roku8hgxnwx3-4.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-4 0}.lst-kix_967surdrqxcj-7 > li{counter-increment:lst-ctn-kix_967surdrqxcj-7}.lst-kix_967surdrqxcj-0 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-0,decimal) ". "}.lst-kix_967surdrqxcj-2 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-2,lower-roman) ". "}.lst-kix_967surdrqxcj-1 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-1,lower-latin) ". "}ol.lst-kix_967surdrqxcj-8.start{counter-reset:lst-ctn-kix_967surdrqxcj-8 0}.lst-kix_967surdrqxcj-4 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-4,lower-latin) ". "}.lst-kix_967surdrqxcj-6 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-6,decimal) ". "}.lst-kix_967surdrqxcj-3 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-3,decimal) ". "}.lst-kix_967surdrqxcj-7 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-7,lower-latin) ". "}.lst-kix_967surdrqxcj-5 > li:before{content:"" counter(lst-ctn-kix_967surdrqxcj-5,lower-roman) ". "}.lst-kix_4lca3ugp3nxe-0 > li:before{content:"- "}.lst-kix_4lca3ugp3nxe-1 > li:before{content:"- "}ol.lst-kix_lj6ivratewh7-5.start{counter-reset:lst-ctn-kix_lj6ivratewh7-5 0}.lst-kix_4lca3ugp3nxe-7 > li:before{content:"- "}.lst-kix_4lca3ugp3nxe-8 > li:before{content:"- "}.lst-kix_lj6ivratewh7-4 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-4}.lst-kix_roku8hgxnwx3-2 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-2}ol.lst-kix_wtrbusoo19t4-3.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-3 0}.lst-kix_4lca3ugp3nxe-6 > li:before{content:"- "}.lst-kix_4lca3ugp3nxe-5 > li:before{content:"- "}.lst-kix_wtrbusoo19t4-1 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-1}ol.lst-kix_lj6ivratewh7-3{list-style-type:none}.lst-kix_4lca3ugp3nxe-3 > li:before{content:"- "}ol.lst-kix_lj6ivratewh7-2{list-style-type:none}.lst-kix_jwatgvl0uxpq-0 > li:before{content:"- "}ol.lst-kix_lj6ivratewh7-5{list-style-type:none}.lst-kix_4lca3ugp3nxe-2 > li:before{content:"- "}.lst-kix_4lca3ugp3nxe-4 > li:before{content:"- "}ol.lst-kix_lj6ivratewh7-4{list-style-type:none}ol.lst-kix_lj6ivratewh7-1{list-style-type:none}ol.lst-kix_lj6ivratewh7-0{list-style-type:none}.lst-kix_e8rayn9knftr-6 > li:before{content:"- "}ol.lst-kix_roku8hgxnwx3-3.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-3 0}ol.lst-kix_967surdrqxcj-7.start{counter-reset:lst-ctn-kix_967surdrqxcj-7 0}.lst-kix_lj6ivratewh7-6 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-6}.lst-kix_e8rayn9knftr-0 > li:before{content:"- "}.lst-kix_e8rayn9knftr-8 > li:before{content:"- "}.lst-kix_roku8hgxnwx3-6 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-6}ol.lst-kix_wtrbusoo19t4-8.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-8 0}ol.lst-kix_roku8hgxnwx3-6.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-6 0}.lst-kix_e8rayn9knftr-2 > li:before{content:"- "}.lst-kix_e8rayn9knftr-4 > li:before{content:"- "}.lst-kix_dgovgxnxaui1-8 > li:before{content:"■ "}.lst-kix_dgovgxnxaui1-6 > li:before{content:"● "}ol.lst-kix_wtrbusoo19t4-5.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-5 0}.lst-kix_dgovgxnxaui1-0 > li:before{content:"● "}.lst-kix_roku8hgxnwx3-5 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-5,lower-roman) ". "}ol.lst-kix_roku8hgxnwx3-2{list-style-type:none}ol.lst-kix_roku8hgxnwx3-1{list-style-type:none}.lst-kix_dgovgxnxaui1-2 > li:before{content:"■ "}ol.lst-kix_roku8hgxnwx3-0{list-style-type:none}ol.lst-kix_lj6ivratewh7-2.start{counter-reset:lst-ctn-kix_lj6ivratewh7-2 0}ol.lst-kix_roku8hgxnwx3-6{list-style-type:none}ol.lst-kix_roku8hgxnwx3-5{list-style-type:none}.lst-kix_dgovgxnxaui1-4 > li:before{content:"○ "}ol.lst-kix_roku8hgxnwx3-4{list-style-type:none}ol.lst-kix_roku8hgxnwx3-3{list-style-type:none}.lst-kix_roku8hgxnwx3-7 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-7,lower-latin) ". "}.lst-kix_wtrbusoo19t4-8 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-8}ol.lst-kix_roku8hgxnwx3-8{list-style-type:none}ol.lst-kix_roku8hgxnwx3-7{list-style-type:none}.lst-kix_lj6ivratewh7-3 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-3,decimal) ". "}.lst-kix_lj6ivratewh7-7 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-7,lower-latin) ". "}ol.lst-kix_wtrbusoo19t4-6.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-6 0}ol.lst-kix_lj6ivratewh7-1.start{counter-reset:lst-ctn-kix_lj6ivratewh7-1 0}.lst-kix_lj6ivratewh7-5 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-5,lower-roman) ". "}.lst-kix_roku8hgxnwx3-3 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-3,decimal) ". "}.lst-kix_roku8hgxnwx3-1 > li:before{content:"" counter(lst-ctn-kix_roku8hgxnwx3-1,lower-latin) ". "}.lst-kix_wtrbusoo19t4-3 > li{counter-increment:lst-ctn-kix_wtrbusoo19t4-3}.lst-kix_lj6ivratewh7-1 > li:before{content:"" counter(lst-ctn-kix_lj6ivratewh7-1,lower-latin) ". "}.lst-kix_roku8hgxnwx3-1 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-1}.lst-kix_lj6ivratewh7-5 > li{counter-increment:lst-ctn-kix_lj6ivratewh7-5}.lst-kix_967surdrqxcj-3 > li{counter-increment:lst-ctn-kix_967surdrqxcj-3}ol.lst-kix_wtrbusoo19t4-7.start{counter-reset:lst-ctn-kix_wtrbusoo19t4-7 0}.lst-kix_roku8hgxnwx3-7 > li{counter-increment:lst-ctn-kix_roku8hgxnwx3-7}ol.lst-kix_roku8hgxnwx3-5.start{counter-reset:lst-ctn-kix_roku8hgxnwx3-5 0}

EXAM1 MEDIf you want to learn more check out What happens if poission distribution is dependent?

Descriptive Statistics is where you collect and describe date

Inferential Statistics is when you ana;yze the data and make decisions or estimates based on info obtained from dataIf you want to learn more check out What is the definition of echelon form?

Qualitative Data: Consists of labels or descriptions of traits of the sample (aka Categorical Data)We also discuss several other topics like What is an example of high order derivative?

examples: favorite foods, hometown, eye color, ID#’s (SS#s, etc) non # category

  • Nominal Data - Data that represents whether a variable passes some characteristics
  • Arithmetic operations (+ - x ), cannot be applied; #s used as names, can do counts and %
  • Ex: Female/Male, true/false
  • Ordinal Data - data that represent categories that have some associated order
  • mutually exclusive, exhaustive and ordered and ranked
  • Not equal intervals
  • Ex: scale of 1 to 5 1 being least and 5 highest

If you want to learn more check out What are the challenges of a larger size?

Quantitative Data: consists of counts or measurements (aka Numerical Data)

        Can be manipulated in ways qualitative data can not

        If measurement scale of the data has equal distances or interval between value they are quantitative

        Examples: Test scores, ave rain fall, median weightsWe also discuss several other topics like which of the following is a trace mineral quizlet

We also discuss several other topics like Do we need a license to broadcast in TV?

Continuous Data:  Data that can take on any value within some interval

        Continuous data if data < or > (no = sign) and #s keep going  → o< 5, 5<10, 10< 15 , etc

        Ex: measurements, length and width, temperatures, weight

Discrete Data: Data that refers to individual #s that are countable (Whole #s, 1, 2, 3, etc)

        Discrete data if data ≤ or ≥  →   0 ≤ 5, 6 ≤ 10, 11 ≤ 15

Ex: you can't have 2.5 pets, either 2 or 3; no ½ room, etc.

Interval Data: Data that can be ordered and the arithmetic difference is meaningful

point associated with data in a scale, but no actual (no absence of something)

Example: Temperature

Ratio Data: Same as interval but they have a meaningful and ratio of 2 points is meaningful

        Absolute value is zero and has meaning

        Ex: cost (if something costs 0 it costs no money)

DETERMINING THE MOST APPROPRIATE MEASURE OF CENTER

  1. For qualitative data, the mode should be used
  2. For quantitative data, the mean should be used, unless the data set contains outlier or is skewed.
  3. For quantitative data, sets that are skewed or contain outliers, the median should be used

MODE is the highest peak of distribution

  • # that occurs most frequently, so you’ll see more #s by peak
  1. A data set may not have a mode
  2. A data set may have 1 or more than 1 mode
  3. If a mode exists for a data set, the mode is a value in the data set
  4. Not affected by outliers in the data set
  5. Only measure of center appropriate for qualitative data

MEDIAN is the # in the middle, so on distribution it will divide the area of the distribution in ½

  • # usually between mode and mean; ½ distribution
  1. Easy to compute by hand
  2. The middle # of the ordered data set
  3. Only determined by middle values of data set and not affected by extreme values
  4. Useful measure of center for skewed distribution
  5. Is not necessarily a value in the data set

MEAN will be pulled toward any outlier

  • If distribution skewed to the right, mean will be shifted to the right (vice versa)
  1. Most familiar and widely used
  2. Its value’s affected by every value in the data set
  3. Is not necessarily a value in the data set
  4. Appropriate choice for quantitative data with no outliers

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