- 2.3.1BSC: ?The IQ scores of the low lead group listed in Table 2-1, and Figu...
- 2.3.2BSC: ?Voluntary Response Sample The histogram in Figure 22 on page 55 i...
- 2.3.3BSC: Small Data NASA provides these duration times (in minutes) of all f...
- 2.3.4BSC: Normal Distribution When it refers to a normal distribution, does t...
- 2.3.5BSC: ?Interpreting a Histogram. In Exercises 5–8, answer the questions b...
- 2.3.6BSC: ?Interpreting a Histogram. In Exercises 5–8, answer the questions b...
- 2.3.7BSC: ?Interpreting a Histogram. In Exercises 5–8, answer the questions b...
- 2.3.8BSC: ?Interpreting a Histogram. In Exercises 5–8, answer the questions b...
- 2.3.9BSC: Constructing Histograms. Construct the histograms and answer the gi...
- 2.3.10BSC: ?Constructing Histograms. In Exercises 9–18, construct the histogra...
- 2.3.11BSC: ?Pulse Rates of Males Use the frequency distribution from Exercise ...
- 2.3.12BSC: ?Pulse Rates of Females Use the frequency distribution from Exercis...
- 2.3.13BSC: ?Earthquake Magnitudes Use the frequency distribution from Exercise...
- 2.3.14BSC: ?Earthquake Depths Use the frequency distribution from Exercise 24 ...
- 2.3.15BSC: Constructing Histograms. In Exercises, construct the histograms and...
- 2.3.16BSC: ?Female Red Blood Cell Counts Use the frequency distribution from E...
- 2.3.17BSC: ?Flight Arrival Times Use the frequency distribution from Exercise ...
- 2.3.18BSC: ?Flight Taxi-Out Times Use the relative frequency distribution from...
- 2.3.19BB: ?BacktoBack Relative Frequency Histograms When using histograms to ...
- 2.3.20BB: Interpreting a Histogram Refer to the histogram given for Exercises...
Solutions for Chapter 2.3: Histograms
Full solutions for Elementary Statistics | 12th Edition
Summary of Chapter 2.3: Histograms
A formula used to determine the probability of the union of two (or more) events from the probabilities of the events and their intersection(s).
All possible (subsets) regressions
A method of variable selection in regression that examines all possible subsets of the candidate regressor variables. Eficient computer algorithms have been developed for implementing all possible regressions
The portion of the variability in a set of observations that can be traced to speciic causes, such as operators, materials, or equipment. Also called a special cause.
A distribution with two modes
In experimental design, a group of experimental units or material that is relatively homogeneous. The purpose of dividing experimental units into blocks is to produce an experimental design wherein variability within blocks is smaller than variability between blocks. This allows the factors of interest to be compared in an environment that has less variability than in an unblocked experiment.
The portion of the variability in a set of observations that is due to only random forces and which cannot be traced to speciic sources, such as operators, materials, or equipment. Also called a common cause.
Conditional probability density function
The probability density function of the conditional probability distribution of a continuous random variable.
A tabular arrangement expressing the assignment of members of a data set according to two or more categories or classiication criteria
A probability distribution for a continuous random variable.
In regression, Cook’s distance is a measure of the inluence of each individual observation on the estimates of the regression model parameters. It expresses the distance that the vector of model parameter estimates with the ith observation removed lies from the vector of model parameter estimates based on all observations. Large values of Cook’s distance indicate that the observation is inluential.
A term used for the quantity ( / )( ) 1 1 2 n xi i n ? = that is subtracted from xi i n 2 ? =1 to give the corrected sum of squares deined as (/ ) ( ) 1 1 2 n xx i x i n ? = i ? . The correction factor can also be written as nx 2 .
Cumulative distribution function
For a random variable X, the function of X deined as PX x ( ) ? that is used to specify the probability distribution.
Erlang random variable
A continuous random variable that is the sum of a ixed number of independent, exponential random variables.
A subset of a sample space.
A signal from a control chart when no assignable causes are present
Fisher’s least signiicant difference (LSD) method
A series of pair-wise hypothesis tests of treatment means in an experiment to determine which means differ.
A method of variable selection in regression, where variables are inserted one at a time into the model until no other variables that contribute signiicantly to the model can be found.
In statistical quality control, that portion of a number of units or the output of a process that is defective.
Fractional factorial experiment
A type of factorial experiment in which not all possible treatment combinations are run. This is usually done to reduce the size of an experiment with several factors.
Effects in a fractional factorial experiment that are used to construct the experimental tests used in the experiment. The generators also deine the aliases.