Suppose a mutual fund qualifies as having moderate risk if the standard deviation of its monthly rate of return is less than 6%. a mutual-fund rating agency randomly selects 25 months and determines the rate of return for a certain fund. the standard deviation of the rate of return is computed to be 5.61%. is there sufficient evidence to conclude that the fund has moderate risk at the alpha = 0.10 level of significance? a normal probability plot indicates that the monthly rates of return are normally distributed.

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

answer: it is d

step-by-step explanation:

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal

step-by-step explanation:

tangent z: 4/3

cosine y: 4/5

cotangent y: 4/3