On a test that has a normal distribution, a score of 64 falls one standard deviation below the mean, and a score of 70 falls one standard deviation above the mean.
Determine the mean of this test.

3-4

step-by-step explanation:

the answer is 3-4 because both 45 and 60 has a multiple of 15.

45/3=15

60/4=15

therefore the odds against selecting a red is 4-3

7

step-by-step explanation:

i'm assuming you need to figure out how many campers go into each tent.

i got the answer by:

24+4=28

28/4=7