C: 2/5 inches is your answer
if 2 inches are 60 miles then 12 miles is a fifth of 2 inches.
Answer:
you didnt include the question-
2 = 7 r statement
2/7 = r divide both sides by 7
First compute the mean:
(4.67 + 4.98 + 4.34) / 3 = 4.66
then compute the variance:
(4.67-4.66)^2 = 0.0001
(4.98-4.66)^2 = 0.1024
(4.34-4.66)^2 = 0.1024
sum of the three = 0.2049
then take the square root:
= 0.452
the standard deviation is 0.452
The answer is 153.86:
if we round the answer it will be
153.9
