3.) In the following table, income units are in thousands of dollars, and each interval goes up to but does not include the given high value. The midpoints are given to the nearest thousand dollars. Income range 5-15 15-25 25-35 35-45 45-55 55 or more Midpoint 10 20 30 40 50 60 Percent of super shoppers 21% 14% 22% 15% 20% 8% a. Draw a histogram to graph the probability distribution b. Compute the expected income μ of a super shopper. c. Compute the standard deviation σ for the income of super shoppers.

A County Board of Supervisors has appointed an urban planning committee to evaluate proposed community development projects. The committee is analyzing, among other things, data on household incomes in two cities within the county. They have collected data on the income of 77 households in each of the two cities. The histograms below show the distributions of the two sets of incomes (in thousands of dollars). Each histogram shows household income on the horizontal axis and number of households on the vertical axis. The means and standard deviations for the data sets are also given. City A City B 25+ 20+ 15+ 10+ 5- ← 10 20 30 40 50 60 70 80 90 100 City A mean: 73.96 thousand dollars City A standard deviation: 20.30 thousand dollars Explanation 25- 20- 15- 104 5+ 10 (a) Identify the data set for which it is appropriate to use the Empirical Rule. It is appropriate to use the Empirical Rule for the (Choose one) ▼ data set. 20 30 The committee wants to use the Empirical Rule to make some…

A survey of 30 people was conducted about how many siblings they had. A graph was created that showed the percentage of the survey group, which had each number of siblings. The "frequency" column in the table shows the number of responses that having a certain number of siblings received.   Using appropriate and precise statistical terminology, describe the distribution and provide an explanation for the distribution being a certain way.

A is a table that displays the of the entries in a data set. frequency distribution frequencies stem and leaf plot relative frequencies probability distribution cumulative frequencies histogram cumulative relative frequencies

Describe the data’s distribution. Number of products owned Millions of People 0 27 1 9 2 7 3-4 7 5 5