According to an almanac, 60% of adult smokers started smoking before turning 18 years old.

a) compute the mean and standard deviation of the random variable x, the number of smokers who started before 18 in 100 trials of the probability experiment.

b) interpret the mean.

c)would it be unusual to observe 80 smokers who started smoking before turning 18 years old in a random sample of 100 adult smokers? why?

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

i dont know

step-by-step explanation:

umm. i dont know