# Question

(a) Make a frequency distribution and histogram for the monthly off-campus rent paid by 30 students.

(b) Repeat the exercise, using a different number of bins. Which is preferred? Why?

(b) Repeat the exercise, using a different number of bins. Which is preferred? Why?

## Answer to relevant Questions

(a) Make a frequency distribution and histogram for the 2007 annual compensation of 40 randomly chosen CEOs (millions of dollars). (b) Describe the shape of the histogram. (c) Identify any unusual values. In the Excel function 5 TRIMMEAN (Data,.10) , how many observations would be trimmed from each end of the sorted data array named Data if (a) n = 41, (b) n = 66, and (c) n = 83? (a) Find the mean and standard deviation for each sample. (b) What does this exercise show about the standard deviation? Sample A: 6, 7, 8 Sample B: 61, 62, 63 Sample C: 1000, 1001, 1002 (a) By Chebychev's Theorem, at least how many students in a class of 200 would score within the range μ ± 2σ ? (b) By the Empirical Rule, how many students in a class of 200 would score within the range μ ± 2σ ? (c) ...Scores on an accounting exam ranged from 42 to 96 with quartiles Q1 = 61, Q2 = 77 and Q3 = 85. (a) Sketch a simple boxplot (5-number summary without fences) using a nicely scaled X-asis. (b) Describe its shape (skewed left, ...Post your question

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