Question

Suppose you have a mean standarized score of 1500 points with a standard deviation of 175 points. This data is normally distributed. What is the z-score of a 1350 points?

Answer 1

A. -0.86
B. 0.86
C. 1.54
D. 1.67

Answer 2

use the formula \[\large z=\frac{x-\mu}{\sigma}\]

Answer 3

idk how

Answer 4

where x=score that is to be converted to z-score
\(\mu\)=mean standard score
\(\sigma\)=standard deviation

Answer 5

so x-1500/175?

Answer 6

how do i get the x please help

Answer 7

x is that score that you should convert to a z-score. check the problem. it says that you convert something to a z-score.

Answer 8

1.67 =(1750-1500)/150

Answer 9

THANKS SO MUCH

Answer 10

Medal? :D
(3)
z - score = (raw score - mean score) / (standard deviation)
z - score = (1750 - 1500) / (175)

Answer 11

THE ANSWER IS -O.86

Answer 12

oops. it says what is the z-score of a 1350 points? @FutureMathProfessor

Answer 13

you should try it yourself, @840097 with x=1350.

Answer 14

I Did i got the answer thanks :)

Answer 15

yw