Chapter 1: Q 2.2. (page 35)
The low outlier is Alaska. What percent of Alaska residents are older?
(a)
(b)
(c)
(d)
(e)
Short Answer
The correct option is (a)
Chapter 1: Q 2.2. (page 35)
The low outlier is Alaska. What percent of Alaska residents are older?
(a)
(b)
(c)
(d)
(e)
The correct option is (a)
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Get started for freeWhich of the following statements about this distribution is not correct?
(a) The histogram is right-skewed.
(b) The median is less than
(c) The IQR is
(d) The mean is greater than the median.
(e) The histogram is unimodal.
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 “Almost certain” among females.
Refer to Exercise . We suspect that the more serious soccer players have more arthritis later in life. Do the data confirm this suspicion? Give graphical and numerical evidence to support your answer.
Olympic gold! The following table displays the total number of gold medals won by a sample of countries in the Summer Olympic Games in China.
(a) Make a dot plot to display these data. Describe the overall pattern of the distribution and any deviations from that pattern.
(b) Overall, countries participated in the Summer Olympics, of which won at least one gold medal. Do you believe that the sample of countries listed in the table is representative of this larger population? Why or why not?
Healthy cereal? Researchers collected data on brands of cereal at a local supermarket. For each brand, the sugar content (grams per serving) and the shelf in the store on which the cereal was located ( = bottom, = middle, = top) were recorded. A dot-plot of the data is shown below. Compare the three distributions. Critics claim that supermarkets tend to put sugary kids’ cereals on lower shelves, where the kids can see them. Do the data from this study support this claim?
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