Asimple random sample of size n=46 is obtained from a population with μ=64 and σ=15.

a) what must be true regarding the distribution of the population in order to use the normal model to compute probabilities involving the sample mean?

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

1) is right

step-by-step explanation:

step-by-step explanation:

a c

step-by-step explanation: