What is the z-score of the value 9 rounded to the nearest tenth?

Ophir Bushinsky asked Oct 21, 2023

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Ophir Bushinsky asked Oct 21, 2023

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19 votes

Please, let me know if you have any question anytimeGiven:

mean = μ = 8

standard deviation = σ = 0.7

random value = x = 9

Then, the formula to calculate the z score is given by:

$z=(x-\mu)/(\sigma)$

Substitute the values:

$z=(9-8)/(0.7)=(1)/(0.7)=1.428\approx1.4$

Answer: 1.4

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