In a certain country, the true probability of a baby being a boy is 0.522. among the next five randomly selected births in the country, what is the probability that at least one of them is a girl?

 0.9612

Step-by-step explanation:

The binomial distribution formula is given by :-

, where P(x) is the probability of x successes out of n trials, p is the probability of success on a particular trial.

Given : The probability of a baby being a boy= 0.522.

Then the probability of a girl :

Number of trials  : n= 5

Now, the required probability will be :

Thus,  the probability that at least one of them is a girl = 0.9612

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