Question

"In a family of 6 children, what is the probability of 4 boys and two girls? "

Answer #1

Suppose that a family has five children, consisting of three
girls and two boys. Call the girls Abigail, Brianna, and Courtney;
call the boys Duane and Evan. Suppose further that two of these
children are to be selected at random.
List the sample space of all possible pairs of these five
children.
a.
Determine the probability that one child of each gender will be
selected.
Report your answer to two decimal places; e.g., 0.xx
b. Determine the probability that two...

A family has 19 children. Assume boys and girls are equally
likely and that the gender of one child does not affect the gender
of another child. Find the following probabilities:
a) The probability of the family having no girls.
b) The probability of the family having exactly nine girls.
c) The probability of the family having exactly seven boys.
(Please show all work.)

In a group of 6 boys and 4 girls, four children are to be
selected. In how many different ways can they be selected such that
at least one boy should be there?

1) The random variable X represents the number of girls
in a family of 6 children. Assuming that the event of having boys
and girls are equally likely. Construct the discrete probability
distribution for the random variable X and plot your results. For
the number of girls, determine the expected mean and standard
deviation.

Determine the probability of having 2 girls and 3 boys in a
5-child family assuming boys and girls are equally likely.

Boys and Girls: Suppose a couple plans to have
two children and the probability of having a girl is 0.50.
(a) What is the sample space for the gender outcomes?
{bb, bg, gb, gg}{bb, bg, gg} {bb,
gg}{b,g}
(b) What is the probability that the couple has one boy and one
girl?
1
2
3
4
1
4
1
3
(c) What is the probability that the couple will have at least one
girl?
1
4
1
2
3...

In a family of 4 children, what is the probability that at least
3 of the children are boys?
answer to 4 decimal places.

If the ratio of boys born to girls born is 105 to 100, and if 6
children are born in a certain hospital in a day, what is the
probability that 4 of them are boys? (Round your answer to four
decimal places.)

There are 9 children - 6 girls and 3 boys - a kindergarten
classroom having 3 rows of chairs, 3 chairs in each row. (a) How
many ways can the children be seated in the chairs? (b) How many
ways can the children be seated with all the boys seated together
in a row?

What is the probability of having 2 girls in a family of 5
children? Show your work.
What is the probability that you see a number less than 4 if you
randomly select out of numbers 1-10, assuming each number is
equally likely? Show your work

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 20 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 3 hours ago