Question

The exams scores for a group of freshman biology students are: 31 22 67 89 55 82 75 33 78 79 64 79 82 33 78 62 56 57 60 46 66 80 68 70 77 73 78 69 67 87 94 66 87 77 92 75 75 78 62 70 67 69 51 68 85 79 60 47 67 73 90 75 82 76 88 93 65 79 75 70 63 51 73 How many students took the exam? QUESTION 6 What was the mean exam score. Make sure you follow the rules for significant digits. QUESTION 7 What was the standard deviation for the class? QUESTION 8 How many students fall outside +/- 1 standard deviation from the mean? QUESTION 9 What percentage of students fall outside one standard deviation from the mean?

          The exams scores for a group of freshman biology students are:
31 22 67 89 55 82 75 33
78 79 64 79 82 33 78 62
56 57 60 46 66 80 68 70
77 73 78 69 67 87 94 66
87 77 92 75 75 78 62 70
67 69 51 68 85 79 60 47
67 73 90 75 82 76 88 93
65 79 75 70 63 51 73
How many students took the exam?
QUESTION 6
What was the mean exam score. Make sure you follow the rules for significant digits.
QUESTION 7
What was the standard deviation for the class?
QUESTION 8
How many students fall outside +/- 1 standard deviation from the mean?
QUESTION 9
What percentage of students fall outside one standard deviation from the mean?

The exams scores for a group of freshman biology students are:
31 22 67 89 55 82 75 33
78 79 64 79 82 33 78 62
56 57 60 46 66 80 68 70
77 73 78 69 67 87 94 66
87 77 92 75 75 78 62 70
67 69 51 68 85 79 60 47
67 73 90 75 82 76 88 93
65 79 75 70 63 51 73
How many students took the exam?
QUESTION 6
What was the mean exam score. Make sure you follow the rules for significant digits.
QUESTION 7
What was the standard deviation for the class?
QUESTION 8
How many students fall outside +/- 1 standard deviation from the mean?
QUESTION 9
What percentage of students fall outside one standard deviation from the mean?

Added by Cody C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Sri K

02/14/2023

Step 1

Identify the population of interest. In this case, the population is all the students who took the exam. Show more…

Show all steps

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The exams scores for a group of freshman biology students are: How many students took the exam? QUESTION 6 What was the mean exam score. Make sure you follow the rules for significant digits. QUESTION 7 What was the standard deviation for the class? QUESTION 8 How many students fall outside +/- 1 standard deviation from the mean? QUESTION 9 What percentage of students fall outside one standard deviation from the mean?