Question

In a certain neighborhood, 42% of the houses have a front porch.
Also, 23% of the houses have a front porch and an attached garage.
If a house is selected at random, what is the probability that the
house has an attached garage, **given that** it has a
front porch? Enter result rounded to 3 decimal places.

Answer #1

Suppose that in Los Angeles, 66% of homes have a garage, 23%
have a pool and 12% have both.
1. What is the probability that a home chosen at random has a
pool?
2. What is the probability that a home chosen at random has a
garage?
3. What is the probability that a home chosen at random has
neither a pool nor a garage?
4. What is the probability that a home chosen at random has a
garage but...

you were asked to investigate pets in households
(N=44) at a street near the MSU campus. you found 20 houses have
cat, 19 houses have dogs, 6 houses have both, and some houses have
neither cats or dogs
A. how many classes have neither cats or dogs?
B. if 1 houses is selected at random has dogs, what is the
probability that the house also has cats ( statistics or
probability problem)?
C.if 1 house is selected at random has...

Unknown to a medical researcher, 7 out of 23 patients have a
heart problem that will result in death if they receive the test
drug. 6 patients are randomly selected to receive the drug and the
rest receive a placebo. What is the probability that exactly 4
patients will die? Express your answer as a fraction or a decimal
number rounded to four decimal places.

Unknown to a medical researcher, 9 out of 23 patients have a
heart problem that will result in death if they receive the test
drug. 7 patients are randomly selected to receive the drug and the
rest receive a placebo. What is the probability that exactly 5
patients will die? Express your answer as a fraction or a decimal
number rounded to four decimal places.

In a statistics class of 42 students, 28 have volunteered for
community service in the past. If a student is selected at random
from this class, what is the probability that the student has:
(Round your answers to two decimal places)
1) Volunteered for community service?
2) Not volunteered for community service?

In a certain shipment of 16 modems, 3 are defective. 12 of the
modems are selected at random without replacement. What is the
probability that 3 of the 12 modems are defective? Express your
answer as a fraction or a decimal number rounded to four decimal
places.?

Inactive
Low
Moderate
High
Male
14
15
29
42
Female
39
22
23
16
If a student is selected at random,
i. What is the probability that they have a
low physical activity level?
ii. What is the probability that they are a
female with moderate physical activity level?
iii. What proportion of the students are
inactive?
iv. What proportion of female students have a
high activity level?
v. What proportion of the students have a
moderate or high activity...

The distance students commute at a certain college ranges from 7
to 23 miles. A student is equally likelyto have any commuting
distance within the range. Let X be the random variable
representing the commuting distance by the students at the college.
Answer each question.
Sketch the graph of the density function of X.
What is the probability that a student commutes less than 12
miles?
What is the 77th% percentile of the commuting distance?
It’s also known that X...

A family is relocating from St. Louis, Missouri, to California.
Due to an increasing inventory of houses in St. Louis, it is taking
longer than before to sell a house. The wife is concerned and wants
to know when it is optimal to put their house on the market. Her
realtor friend informs them that the last 23 houses that sold in
their neighborhood took an average time of 180 days to sell. The
realtor also tells them that based...

1. A certain medical test is known to detect 47% of the people
who are afflicted with the disease Y. If 10 people with the disease
are administered the test, what is the probability that the test
will show that:
All 10 have the disease, rounded to four decimal places?
At least 8 have the disease, rounded to four decimal places?
At most 4 have the disease, rounded to four decimal places?
2.
A certain medical test is known to...

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