Question

Calculate the probability that among 6 children born in a given hospital in a particular day that 3 will be boys and 3 will be girls

Biology

Answer #1

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.)

1. If a couple plans to have 4 children, what is the probability
that there will be at least one girl? Assume boys and girls are
equally likely.
2. Find the probability of a couple having a baby boy when their
4th child is born, given that the first three children were all
boys. Assume boys and girls are equally likely.

The probability of a boy being born equals .50 or 1/2 as does
the probability of a girl being born. for a randomly selected
family with two children, what's the probability of a) two boys,
that is, a boy and a girl? (Remember: before using the addition or
multiplication rule, satisfy yourself that the various events are
either mutually exclusive or independent, respectively.) b) two
girls? c) either two boys or two girls?

On a given Sunday, 25 children were born at a maternity
ward.
(a) On an average, out of these children, how
many girls are expected?
(b) What is the standard deviation in the
number of girls?
(c) What would be the usual range for the
number of girls?
(d) Given the above, would 17 girls be
unusually high?
(e) What is the probability that at least 15 of
the children are girls?
[HINT: Binomial distributio

On a given Sunday, 14 children were born at a maternity
ward.
a. On an average, out of these children, how many girls are
expected, what is the standard deviation in the number of
girls?
b. What would be the usual range for the number of girls?
c. Given the above, would 9 girls be unusually high?
d. What is the probability that at least 10 of the children are
girls?
Show work/excel commands for binomial dist.

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

The random variable X is the number of girls of four children
born to a couple that is equally likely to have either a boy or a
girl. Its probability distribution is as follows
Q24
(a) µ = E(X) = (Round your answer to one decimal place)
(b) σ(X) = (Round your answer to one decimal place)
c) Among all families with four children, what is the average
number of boys?
(Round your answer to one decimal place)

The average mass of newborn infants born at a given hospital is
3.5 kg with standard deviation of 575 g. Assume these birth weights
follow a normal distribution.
(a) What is the probability that a newborn selected randomly
from this population has a mass of at least 4.64 kg?
(b) What is the probability that a newborn selected randomly
from this population has a mass between 3.3 kg and 3.6 kg?
(c) If 100 infants are born in one day...

Ten high school students, 6 girls and 4 boys, have applied for 5
available scholarships. In how many ways can these scholarships be
awarded among the applicants if a) No preference is given to any
one student? b) One particular student must be awarded an
assistantship? c) The group of applicants includes 6 girls and 4
boys and it is stipulated that a majority of girls must be awarded
scholarships? d) At least 2 boys are awarded?e) At most 2...

A couple decides to have 5 children. Find the probability of the
couple having a baby boy when their fifth child is born
given that the first four children were all boys.

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