Suppose you received a score of 95 out of 100 on exam 1 . The mean was 79 and the standard deviation was 8 . If your score on ex am 2 is 90 out of 100 , and the mean was 60 with a standard deviation of 15 , then you did:
1 answer:
Answer:
You did the same on both exams .
Step-by-step explanation:
To compare both the scores, we need to compute the z scores of both the exams and then compare the values. The formula for z-score is:
<u>Z = (X - μ)/σ</u>
Where X = score obtained
μ = mean score
σ = standard deviation
For Exam 1 :
Z = (95 - 79)/8
= 16/8
<u>Z = 2</u>
For Exam 2 :
Z = (90 - 60)/15
= 30/15
<u>Z = 2</u>
<u>The z-scores for both the tests are same hence the third option is correct i.e. </u><u>you did the same on both exams. </u>
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hope you understood
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Step-by-step explanation: </h2>
