Chapter 2: Q.2.61 (page 68)
Use single-value grouping.

Short Answer
a). Frequency distribution,

b). Relative frequency,

c). Frequency histogram,

d). Relative frequency histogram,

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Chapter 2: Q.2.61 (page 68)
Use single-value grouping.

a). Frequency distribution,

b). Relative frequency,

c). Frequency histogram,

d). Relative frequency histogram,

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Top Broadcast Shows. As reported in Primetime Broadcast Programs, a publication of The Nielsen Company, the top three prime broadcast network television shows for the week of August 5, 2013, are as presented in the following table. Ratings are the percentage of TV homes in the United States tuned into television. Identify the type of data provided by the information in each column of the table
.

Gas Mileage. The gas mileages, are rounded to the nearest number of miles per gallon, of all new car models.
Cholesterol Levels. According to the National Health and Nutrition Examination Survey, published by the Centers for Disease Control and Prevention, the average cholesterol level for children between 4 and 19 years of age is 165mg /dl. A pediatrician who tested the cholesterol levels of several young patients was alarmed to find that many had levels higher than 200mg / dL. The following relative frequency histogram shows the readings for some patients who had high cholesterol levels.

Construct a stem-and-leaf diagram for the data, using two lines per stem.

A variable of a population has a left-skewed distribution.
a. If a large simple random sample is taken from the population, roughly what shape will the distribution of the sample have? Explain your answer.
b. If two simple random samples are taken from the population, would you expect the two sample distributions to have identical shapes? Explain your answer.
c. If two simple random samples are taken from the population, would you expect the two sample distributions to have similar shapes? If so, what shape would that be? Explain your answers.
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