Question

I do NOT understand how to do this type of problem, but would like to so I need some assistance.

Answer 1

The average time it takes a lawn to be mowed is 1.35 hours with a standard deviation of 0.25. What is the z-score of a lawn that takes 2.15 hours to mow?
A. 0.71
B. 2.49
C. 2.7
D. 3.2

Answer 2

show me how to do this tep by step please

Answer 3

@tkhunny I need to see some light

Answer 4

Hi ill help

Answer 5

Thank you!

Answer 6

The answer is B, your welcome, bye

Answer 7

bu how do you do thisssssss

Answer 8

Just calculate the z-score. \(\dfrac{2.15 - 1.35}{0.25}\)

This should nto be challenging you. Memorize the calculation. Get it in your head.

Answer 9

Exactly.