10.5 C4U - Probability Review #1

Posljednje ažuriranje 3 months ago

Find the probabilities below. Write your final answers rounded to the nearest 10th in decimal form, or to the nearest percent in percentage form.

Example: P(A)=0.7681297114

Acceptable answers: 0.77 or 77%

10.5 C4U - Probability Review #1

Posljednje ažuriranje 3 months ago

Find the probabilities below. Write your final answers rounded to the nearest 10th in decimal form, or to the nearest percent in percentage form.

Example: P(A)=0.7681297114

Acceptable answers: 0.77 or 77%

In a recent survey by The Hollywood Reporter, a random sample of adults aged 18-29 were asked the following question:

How often do you listen to music via streaming services?

Response	Every day	Several times per week	About once per week	Several times per month	About once per month	Less than once per month	Never
Probability	0.51	0.19	0.05	0.04	0.01	0.05

Find the probability for the "Never" response.

What is the probability of “Less than once per month” or “Never”?

A music lover listens to streaming music several times per week or more. Find the probability of getting someone who is a music lover.

In a recent survey by The Hollywood Reporter, a random sample of 2,091 adults were asked the

following question:

In general, what kind of fan do you consider yourself of music?

	Avid Fan	Casual Fan	Not a Fan	Total
Gen Z: Age 18-22	107	41	13
Millennial: Age 23-38	401	213	32
Gen X: Age 39-54	307	226	24
Boomers: Age 55-73	281	397	49
Total

10.5 C4U - Probability Review #1

Find the probabilities below. Write your final answers rounded to the nearest 10th in decimal form, or to the nearest percent in percentage form.

Example: P(A)=0.7681297114

Acceptable answers: 0.77 or 77%

10.5 C4U - Probability Review #1

Find the probabilities below. Write your final answers rounded to the nearest 10th in decimal form, or to the nearest percent in percentage form.

Example: P(A)=0.7681297114

Acceptable answers: 0.77 or 77%

Find the probability for the "Never" response.

What is the probability of “Less than once per month” or “Never”?

A music lover listens to streaming music several times per week or more. Find the probability of getting someone who is a music lover.

Find the probability for the "Never" response.

What is the probability of “Less than once per month” or “Never”?

A music lover listens to streaming music several times per week or more. Find the probability of getting someone who is a music lover.

A music lover listens to streaming music several times per week or more. Find the probability of getting someone who is NOT a music lover.

A music lover listens to streaming music several times per week or more. Given that someone is a music lover, what is the probability that they listen to music every day?

Suppose we randomly select one of these adults. What is the probability that they are a casual fan?

Suppose we randomly select one of these adults. What is the probability that they are not an avid fan?

Suppose we randomly select one of these adults. What is the probability that they are a Boomer who is not a fan?

Suppose we randomly select one of these adults. What is the probability they are Gen Z or an avid fan?

Suppose we randomly select one of these adults. What is the probability that they are an avid fan if we know that they are a Millennial?

Suppose we randomly select one of these adults. Given that they are 39 or older, what is the probability they are an avid fan?

A music lover listens to streaming music several times per week or more. Find the probability of getting someone who is NOT a music lover.

A music lover listens to streaming music several times per week or more. Given that someone is a music lover, what is the probability that they listen to music every day?

Suppose we randomly select one of these adults. What is the probability that they are a casual fan?

Suppose we randomly select one of these adults. What is the probability that they are not an avid fan?

Suppose we randomly select one of these adults. What is the probability that they are a Boomer who is not a fan?

Suppose we randomly select one of these adults. What is the probability they are Gen Z or an avid fan?

Suppose we randomly select one of these adults. What is the probability that they are an avid fan if we know that they are a Millennial?

Suppose we randomly select one of these adults. Given that they are 39 or older, what is the probability they are an avid fan?