Question 1

In a survey of the number of DVDs in a house, the table shows the probabilities.  
-Find the probability of a house having 1 or 2 DVDs.

Accepted Answer

A) 0.57 
B) 0.83 
C) 0.95 
D) 0.38 
A) 0.57 
B) 0.83 
C) 0.95 
D) 0.38

Question 2

Use the tree diagram to find the requested probability.
-Find P(XIA).Give your answer as a decimal and round your answer to three decimal places if necessary.   a = 0.7,b = 0.3,c = 0.1,d = 0.9,e = 0.2,f = 0.8

Accepted Answer

A) 0.1 
B) 0.233 
C) 0.538 
D) 0.07 
A) 0.1 
B) 0.233 
C) 0.538 
D) 0.07

Question 3

Find the expected value.
-Mr.Cameron is sponsoring an summer concert.He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain.The weather bureau predicts the chance of rain is 0.34 for the day of the concert.What are Mr.Cameron's expected concert earning?

Accepted Answer

A) $360,000 
B) $60,000 
C) $300,000 
D) $218,400 
A) $360,000 
B) $60,000 
C) $300,000 
D) $218,400

Question 4

List the outcomes of the sample space.
-A group of 18 songs are assigned numbers 1 through 18.List the outcomes of sample space of the event choosing a song with a number 5 or less.

Accepted Answer

A) {1,2,3,4} 
B) {1,2,3,4,5} 
C) {18} 
D) {1} 
A) {1,2,3,4} 
B) {1,2,3,4,5} 
C) {18} 
D) {1}

Question 5

Determine independence. Answer Yes or No.
-The table shows the political affiliation of voters in one city and their positions on stronger gun control laws.   Are party affiliation and position on gun control laws independent?

Accepted Answer

A) Yes 
B) No 
A) Yes 
B) No

In a survey of the number of DVDs in a house, the table shows the probabilities. -Find the probability of a house having 1 or 2 DVDs.

Use the tree diagram to find the requested probability. -Find P(XIA).Give your answer as a decimal and round your answer to three decimal places if necessary. a = 0.7,b = 0.3,c = 0.1,d = 0.9,e = 0.2,f = 0.8

Find the expected value. -Mr.Cameron is sponsoring an summer concert.He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain.The weather bureau predicts the chance of rain is 0.34 for the day of the concert.What are Mr.Cameron's expected concert earning?

List the outcomes of the sample space. -A group of 18 songs are assigned numbers 1 through 18.List the outcomes of sample space of the event choosing a song with a number 5 or less.

Determine independence. Answer Yes or No. -The table shows the political affiliation of voters in one city and their positions on stronger gun control laws. Are party affiliation and position on gun control laws independent?

Linear Equations and Graphs

Mathematics of Finance

Linear Inequalities and Linear Programming

Logic, sets, and Counting

Markov Chains

Limits and the Derivative

Mathematical Functions and Limits

Filters

Exam 8: Probability