Question

Sherrie measured the amount of rain received each day over the last two weeks. Her results, in inches, are:

0.57, 0.84, 0.73, 0.08, 0, 0.01, 1.80, 0.85, 0, 0, 0, 0.18, 0.24, 0.64

What is the average amount of rainfall (rounded to the nearest hundredth of an inch) received each day over this two week period?
A) 0.21
B) 0.42
C) 0.50
D) 0.59

Answer 1

C. 0.50

Answer 2

how u got there?

Answer 3

Hold on

Answer 4

http://www.srh.noaa.gov/epz/?n=elpaso_monthly_precip

Answer 5

?

Answer 6

\[\large{average=mean}\] https://www.mathsisfun.com/definitions/mean.html

Answer 7

aahh hold on a min then

Answer 8

np.

Answer 9

is it B?

Answer 10

i added them all and then divided by 14 and got 0.42

Answer 11

I counted fifteen values.

Lemme check

Answer 12

kk

Answer 13

Actually, it would be easier if you crossed out the zeros and just calculated the average of the rest

Answer 14

Since the zeros don't affect the sum value

Answer 15

0.57, 0.84, 0.73, 0.08, 0.01, 1.80, 0.85, 0.18, 0.24, 0.64

So that makes ten values.
What average did you get from this set?

Answer 16

0.59

Answer 17

Yup

Answer 18

you still have to divide by 14 (not 10)

Answer 19

Oops, yeah, he's right

Answer 20

.......so is it B or D?

Answer 21

@phi has the right idea, ignore my goof :p

Answer 22

example
average of 0 and 1 is (0+1)/2 = 1/2

Answer 23

you should get 5.9/14

Answer 24

so B