A runner's distribution of times for running 1,000 meters has a mean of 4.5 minutes with a standard deviation of 0.75 minutes. One of the runner's times has a z-score of -1.08. Which of the following statements is the best
interpretation of this Z-score?
This runner's time was faster than the mean time by 0.75 standard deviations
O This runner's time was faster than the mean time by 1.08 standard deviations.
O This runner's time was slower than the mean time by 0.75 standard deviations.
O This runner's time was slower than the mean time by 1.08 standard deviations

65

step-by-step explanation:

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.

the answer is:

mean: 6

mad: 2.14