Math Solutions

(See Solution) For the following set of scores, prepare a frequency distribution, a histogram, and a stem-and-leaf display for each variable. Are there

Question: For the following set of scores, prepare a frequency distribution, a histogram, and a stem-and-leaf display for each variable. Are there any outliers in the distribution? If so, what is the result if these scores are removed from the data set?

Subject Variable A: Attitude toward descriptive statistics (1 = low and 20 = high) Variable B: Achievement on test of knowledge of descriptive statistics
Sam
12
80
Sally 10 60
Frank 9 85
Bob 8 65
Colleen 2 55
Isaiah 15 75
Felix 1 95
Dan 20 82
Robert 6 70
Jim 11 88
Michelle 3 59
Jan 7 60

Using the data from Problem 3 and the Excel ® Analysis tool complete the following:

  1. Find the following for Variables A and B: mean, median, mode, and standard deviation
  2. Compute the coefficient correlation between Variables A and B

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