Question
In: Statistics and Probability
In a family with 7 children, excluding multiple births, what is the probability of having exactly...
In a family with 7 children, excluding multiple births, what is
the probability of having exactly 2 girls?
Assume that having a boy is as likely as having a girl at each
birth.
A coin is tossed 8 times.
a) How many different outcomes are possible?
b) What is the probability of getting exactly 2 heads?
c) What is the probability of getting at least 2 heads?
d) What is the probability of getting at most 4 heads?
In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 13% of voters are Independent. A survey asked 26 people to identify themselves as Democrat, Republican, or Independent.
A. What is the probability that none of the people are Independent?
Probability =
B. What is the probability that fewer than 5 are Independent?
Probability =
C. What is the probability that more than 2 people are Independent?
Probability =
Solutions
orchestra answered 2 years agoRelated Solutions
In a family with 6 children, excluding multiple births, what is the probability of having exactly...
In a family with 6 children, excluding multiple births, what is
the probability of having exactly 2 girls?
Assume that having a boy is as likely as having a girl at each
birth.
---------------------------------
A biotechnology company produced 201 doses of somatropin,
including 9 which were defective. Quality control test 15 samples
at random, and rejects the batch if any of the random samples are
found defective. What is the probability that the batch gets
rejected?
--------------------------------
A math professor...
In a family with 6 children, excluding multiple births, what is the probability of having exactly...
In a family with 6 children, excluding multiple births, what is
the probability of having exactly 2 girls?
Assume that having a boy is as likely as having a girl at each
birth.
---------------------------------
A biotechnology company produced 201 doses of somatropin,
including 9 which were defective. Quality control test 15 samples
at random, and rejects the batch if any of the random samples are
found defective. What is the probability that the batch gets
rejected?
--------------------------------
A math professor...
In a family of 4 children, what is the probability that two of the children are...
In a family of 4 children, what is the probability that two of
the children are boys and two of the children are girls?
answer correct to 4 decimal places
The Wilson family had 7 children. Assuming that the probability of a child being a girl...
The Wilson family had 7 children. Assuming that the probability
of a child being a girl is 0.5, find the probability that the
Wilson family had at least 6 girls? at most 6 girls? Round your
answers to 3 decimal places.
What is the probability of having exactly 10 days of precipitation in the month of April...
What is the probability of having exactly 10 days of
precipitation in the month of April in West Palm Beach? If it only
rain about 3.66 inches in the month of April.
What is the probability of having less than three days of
precipitation in the month of April?
What is the probability of having more than 15 days of
precipitation in the month of April?
Gender of a Children: A couple has 4 children . Find each probability A. exactly two...
Gender of a Children: A couple has 4 children . Find each
probability
A. exactly two girls and two boys
B. At least one child who is a girl
C. At least one child of each Gender.
Find the probability that in a family of 4 children there willbea) At least...
Find the probability that in a family of 4 children there will
bea) At least 1 girlb) At least 1 boy and at least 1 girlc) Out of 1500 families with 3 children each how many would you
expect to have 1 or 2 girls.Assume that the probability of a female birth is 1/2.
The probability for a family having x dogs is given by: Number of Dogs, x Probability...
The probability for a family having x dogs is given by:
Number of Dogs, x
Probability of x, P(X=x)
0
.3
1
.4
2
.2
3
.1
Find the expected number of dogs that a family will have. Round
to the nearest tenth.
Given a sample of 90 couples, each couple having two children What is the probability of...
Given a sample of 90 couples, each couple having two
children
What is the probability of any couple having one girl and one
boy?
A coin will be tossed 7 times. Find the probability that there will be exactly 2...
A coin will be tossed 7 times. Find the probability that there
will be exactly 2 heads among the first 4 tosses, and exactly 2
heads among the last 3 tosses. (Include 2 digits after the decimal
point.)
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