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Chapter 7 Section 1 Concluded

by: amber weiss

Chapter 7 Section 1 Concluded Math 112b Sec 004

amber weiss
GPA 3.7
elementary mathmatics
cheryl eames

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About this Document

Here is the last part of section 1
elementary mathmatics
cheryl eames
Class Notes
Math 112b
25 ?




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This 2 page Class Notes was uploaded by amber weiss on Monday January 25, 2016. The Class Notes belongs to Math 112b Sec 004 at Southern Illinois University Edwardsville taught by cheryl eames in Spring 2016. Since its upload, it has received 14 views. For similar materials see elementary mathmatics in Mathmatics at Southern Illinois University Edwardsville.


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Date Created: 01/25/16
Math 112b Dr Eames Chapter 7 Section 1 Day 2 0 Scatter Plot On our notes packet there is a list of questions that go along with the scatter plot of fata points based on the weight of infants Welghts of Infants 105 100 quotHIo 3 l 391 I I I I I I I I I I I I I I I I I I E 93 E a 90 o o E 85 an D I I I I I I I I I I I I I I I I I I 3390quotquot39TquotIt39TquotIquotquotIquotTquotIquotTquotTquotIquotTquotIquotT I quotquot3939quot39l39quot3939quot quot39l39quot39 IquotTquot1quotquotquot3939quotTquot3939quotTquot3939quotTquot39quot m o44 44 16 18 39I 4 3933913903917239 Age in days J I G The following questions are included 1 Plot an age of 10 days and a weight of 875lbs the dot would be on the 10 day mark and you would plot it on the point in between 9 and 85 the talleys on the vertical line are going up by 25 Does there appear to be a linear relationship between age in days and weight in pounds for the selected group of infants YES If so is it a positive or negative correlation Positive What is the largest weight for any of the infants measured 105 lbs What is the age of the infant listed in number 4 16 days What is the smallest weight for any of the infants measured 675le What is the age of the infant ln question 6 1 day old If an infant were 13 days old approximately how much would that child weigh based on the given data Make a trend line the best of your ability The best estimate based on my trend line would be around 925le It will vary based on your line Also this graph needs a break in between the 1 and the 0 on the horizontal line Iquot 3 Pquot39gtW oz Frequency and Histograms Construct a frequency table for weights in the scatter plot Use a 5 intervals of equal width The weight range would be 375 because you take the largest and subtract the smallest 105675 How to nd the interval width you take the range and divide it by the number of intervals 3755 75 you can use 1 here we are using 99 lnterval 625724 725824 825924 9251024 10251124 frequency 3 5 10 6 1 60 Histogram 12 10 I39U39IN39 N I OO39U39IN39 O39U39IN39 gtl gtl O 39 Ol quotU39l39 l l quotU39l lgtl lgtl39


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