24. What is the sample standard deviation from the Range Frequency Table from Excel?
a. 15.00
b. 16.61
c. 15.65
d. 14.38
e. 14.70
25. Why are these values different?
a. Because Excel makes errors
b. Because when going from exact values to a range table, the values become approximate
c. Because the spreadsheet calculates the values in different ways
d. Because the variance is calculated differently
Extracted text: Use these test grades for a statistics class to answer questions 22-27: {48, 52, 55, 60, 62, 62, 67, 71, 73, 75, 77, 78, 80, 83, 83, 83, 89, 92, 92, 95, 96, 99, 99} Fill in the Freq. Table below using the grades above from the statistics class. The table is a Freq. Table bas on a standard 10 point scale. F has been lower-capped at 45. Label Lower Upper Freq. A 90 100 В 80 89 C 70 79 60 69 45 59 22 What is the freauency breakdown of grades2.