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21 votes
21 votes
On a test that has a normal distribution, a score of 25 falls three standard deviations

below the mean, and a score of 35 falls two standard deviations above the mean.
Determine the mean of this test.

User Shubham Baranwal
by
2.7k points

1 Answer

29 votes
29 votes

Answer: 31

Step-by-step explanation: 25 and 35 are 5 standard deviations apart

35-25/5 =10/15 =2

Add/ Subtract 2 each time

User Tianyi Shi
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2.9k points