Chapter 1: Q T1.3. (page 78)
Which of the following bar graphs is equivalent to the pie chart in Question T1.2?

Short Answer
The correct option is (b)

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Chapter 1: Q T1.3. (page 78)
Which of the following bar graphs is equivalent to the pie chart in Question T1.2?

The correct option is (b)

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A class survey Here is a small part of the data set that describes the students in an AP Statistics class. The data come from anonymous responses to a questionnaire filled out on the first day of class.

a. What individual does with the data set describe
b. Identification of the quantitative variables
c. describe the individual in a highlighted row
The audience for movies Here are data on the percent of people in several age groups who attended a movie in the past months:
(a) Display these data in a bar graph. Describe what you see.
(b) Would it be correct to make a pie chart of these data? Why or why not?
(c) A movie studio wants to know what percent of the total audience for movies is to years old. Explain why these data do not answer this question.
| Age group | Movie attendence |
| 18 to 24 years | 83% |
| 25 to 34 years | 73% |
| 35 to 44 years | 68% |
| 45 to 54 years | 60% |
| 55 to 64 years | 47% |
| 65 to 74 years | 32% |
| 75 to and over | 20% |
You have data on the weights in grams of baby pythons. The mean weight is 31.8 and the standard deviation of the weights is . The correct units for the standard deviation are
(a) no units鈥攊t鈥檚 just a number.
(b) grams.
(c) grams squared.
(d) pythons.
(e) pythons squared
Going to school Students in a high school statistics class were given data about the primary method of transportation to school for a group of students. They produced the pictograph shown.

(a) How is this graph misleading?
(b) Make a new graph that isn鈥檛 misleading.
The National Survey of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was "What do you think are the chances you will be married in the next ten years?" Here is a two-way table of the responses by gender: Your percent from the previous exercise is part of-
(a) the marginal distribution of gender.
(b) the marginal distribution of opinion about marriage.
(c) the conditional distribution of gender among adolescents with a given opinion.
(d) the conditional distribution of opinion among adolescents of a given gender.
(e) the conditional distribution of 鈥淎lmost certain鈥 among females.

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