A. find the probability of getting exactly 6 girls in 8 births. b. find the probability of getting 6 or more girls in 8 births. c. which probability is relevant for determining whether 6 is a significantly girls in 8 births: the result from part (a) or part (b)

Assuming each birth can give life to a boy or girl with equal chance, then the probability of having a girl is

The probability of having exactly six girls is given by Bernoulli rule:

As for the second point, let's compute the probabilty of having zero, one or two boys, which is the same of having six or more girls, but requires less calculations:

which simplifies to

Finally, I am not sure of what you mean with the point c, so please clarify the question.

b. x- 48 =120

step-by-step explanation:

irrational, then, just means all the numbers that aren't rational. every integer is a rational number, since each integer n can be written in the form n/1. however, numbers like 1/2, 45454737/2424242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

step-by-step explanation: