I hope this helps you. Plz mark me as the brainliest.
To answer your question, it is shown in the image below:
Answer:
Step-by-step explanation:
y=2/3x-3
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..
It took about 0.66 hour, which is basically 40 minutes.