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1 vote
Given a mean of 7.6 and a standard deviation of 3.1, what is the z-score of the value 5 rounded to the nearest tenth?

A: -0.8

B: -0.3

C: 0.8

D: 0.3

User Miszczu
by
8.1k points

2 Answers

1 vote

Answer:

-0.8

Explanation:

User Pesho Hristov
by
7.7k points
4 votes

Given mean μ = 7.6 and standard deviation σ =3.1

The z score value for x= 5 is given by

Z =
(x - mean)/(standard deviation)

Z =
(5 - 7.6)/(3.1 )

Z = -0.8387

The Z- score value rounded to nearest tenth is -0.8

The correct answer choice is A. -0.8

User JakeParis
by
8.0k points

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