Answer:
z-score = 1
Step-by-step explanation:
Given
Mean= μ=240
SD= σ=32
In order to find the z-score of a value, the mean is subtracted from the value and then divided by standard deviation.
The formula for z-score is:
z-score=(x-μ)/σ
Here x is the value whose z-score is to be found.
In the given question, x = 272
So,
z-score=(272-240)/32
=32/32
=1
So , the z-score for 272 is 1..
Answer:
4
Step-by-step explanation:
X+8= 12
Carry over the 8 and make X the subject.
X= 12-8
X= 4
Step-by-step explanation:
Take a look at the picture, And tell me if am wrong
Answer:
if im not mistaken.. i would say its -3.5 or -7/2
Step-by-step explanation:
