Question 24 4 pts
Test scores for a history class had a mean of 79 with a standard deviation of 4.5. Test
scores for a physics class had a mean of 69 with a standard deviation of 3.7. Suppose a
student gets a 65 on the history test and a 84 on the physics test. Calculate the z-score for
each test. On which test did the student perform better?
History
Physics

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values