Answer:
Let x be the number of 3- point questions and y be the number of 5-points questions.
Step-by-step explanation:
A supervisor finds the mean number of miles that the employees in a department live from work is 24. Then the correct option is B.
<h3>What is a z-score?</h3>
The z-score is a numerical measurement used in statistics of the value's relationship to the mean of a group of values, measured in terms of standards from the mean.
The z-score is given as

x = 29
s = 3.6
z = 1.5
Then the mean will be

More about the z-score link is given below.
brainly.com/question/15016913
Answer:
d
Step-by-step explanation: