Question 15
MediumOriginal questionA variable is normal with mean 50 and standard deviation 5. Which value of has ?
Show the answer and explanation
CorrectNot quiteAnswer A
Correct answer: A
Explanation
.
.
Worth noting
56 adds the 6 instead of subtracting it: a negative z lies below the mean.
- Concept
- From z back to x
- Typical timeTypical
- 90 s
- Your timeYours
- —
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