Calculate the standard score of the given x value, x=90.1 , where μ=82.3 , σ=5.9 . Round your answer to two decimal places.
Solution :
Given that,
mean =
= 82.3
standard deviation =
= 5.9
x = 90.1
Using z-score formula,
z = x - /
= 90.1 - 82.3 / 5.9
= 8.8 / 5.9
= 1.49
z-score = 1.49
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