Solve the problem. A variable x has the possible observations shown below. Possible observations of x: -3 -1 0 1 1 2 4 4 5 Find the z-score corresponding to an observed value of x of 2.

Step-by-step explanation:

Given

x: -3 -1 0 1 1 2 4 4 5

n = 9

Required

Determine the z-score x = 2

z score is calculated by

First, we need to calculate the mean

Mean = \frac{-3- 1 + 0 + 1 + 1 + 2 + 4 + 4 +5}{n}

Next is to calculate the standard deviation

Substitute these values in

Where x = 2

Hence, the z score of x = 2 is o.228

22

step-by-step explanation: