Question

Question 1 Given a mean of 25 and a standard deviation of 2.5, what is the z-score of a data value X = 29? -1.06 1.6 ООО -1.6 1.06

Answer 1

The information we have is:

Mean:

`\mu=25`

Standard deviation:

`\sigma=2.5`

Value of x:

`x=29`

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To solve this problem, we need to use the z-score formula:

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

Substituting our values:

`z=(29-25)/(2.5)`

We need to solve the subtraction first:

`z=(4)/(2.5)`

Finally, solve the division to find the z-score:

`z=1.6`

the z-score is 1.6

Answer: 1.6