Question

The probability of contracting a stomach virus while visiting Mexico is 23%. Find the probabiltiy that amongst 12 students visiting mexico

a.Exactly 5 students contract a stomach virus

b. More than 2 students contract a stomach virus..

Answer #1

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People visiting video rental stores often rent more than one DVD
at a time. The probability distribution for DVD rentals per
customer at Video To Go is given in the table below. There is a
five-video limit per customer at this store, so nobody ever rents
more than five DVDs.
x
P(x)
0
0.04
1
0.47
2
0.24
3
4
0.08
5
0.04
Find the probability that a customer rents three DVDs. (Enter an
exact number as an integer, fraction,...

Problem 9: Suppose the probability of being infected with a
certain virus is 0.005. A test used to detect the virus is positive
90% of the time given that the person tested has the virus, and
positive 5% of the time given that the person tested does not have
the virus. (2 points)
a. Use Bayes’ Theorem to find the probability that a person has
the virus, given that they tested positive. Clearly show your work
and how you are...

People visiting video rental stores often rent more than one DVD
at a time. The probability distribution for DVD rentals per
customer at Video To Go is given in the table below. There is a
five-video limit per customer at this store, so nobody ever rents
more than five DVDs.
x
P(x)
0
0.03
1
0.54
2
0.24
3
4
0.06
5
0.04
Part (a)
Describe the random variable X in words.
X is the number of times a single...

Ocean fishing for billfish is very popular in the Cozumel region
of Mexico. In the Cozumel region about 39% of strikes (while
trolling) resulted in a catch. Suppose that on a given day a fleet
of fishing boats got a total of 29 strikes. Find the following
probabilities. (Round your answers to four decimal places.)
(a) 12 or fewer fish were caught
(b) 5 or more fish were caught
(c) between 5 and 12 fish were caught

The probability that a male will be color-blind is 0.047. Find
the probabilities that in a group of 53 men, the following will be
true.
(a) Exactly 5 are color-blind.
(b) No more than 5 are color-blind.
(c) At least 1 is color-blind.

A committee of 5 persons is to be selected out of 6 men and 2
women. Find the number of ways in which more men are selected than
women? b) If 5 students are to be randomly chosen from a group of
12 students to form a committee for a class trip, what is the
probability that group members Alice and Tom will be chosen for the
committee?

For a sample size of 6 and a success rate of 40%, find the
probability of:
a) 0 successes
b)6 successes
c)at least 5 successes
d)no more than 3 successes
e)fewer than 4 successes

1. A population is normally distributed with mean 19.1 and
standard deviation 4.4. Find the probability that a sample of 9
values taken from this population will have a mean less than
22.
*Note: all z-scores must be rounded to the nearest hundredth.
2. A particular fruit's weights are normally distributed, with a
mean of 377 grams and a standard deviation of 11 grams.
If you pick 2 fruit at random, what is the probability that their
mean weight will...

Assume a normal distribution and find the following
probabilities. (Round the values of z to 2 decimal places. Round
your answers to 4 decimal places.)
(a) P(x < 21 | μ = 23 and σ = 3) enter the probability of
fewer than 21 outcomes if the mean is 23 and the standard deviation
is 3
(b) P(x ≥ 75 | μ = 60 and σ = 9) enter the probability of 75 or
more outcomes if the mean is...

In order to find out the probability that a student will bring a
car to campus, 100 students are polled. Of those students, 85 have
cars to bring to campus.
1. For the 95% confidence level, find the error, E, for the
confidence interval (round your answer to two decimal places).
**ANSWER IS NOT .04
2.Which of the following is the correct interpretation of the
confidence interval? (Select All That Apply)
a) We are 95% confident the proportion of students...

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