Question

In: Statistics and Probability

Probability and Statistics Could you please solve the following questions with specifying the answers A. Thirty-nine...

Probability and Statistics
Could you please solve the following questions with specifying the answers

A. Thirty-nine percent of the houses in a certain neighborhood read the New Yorker, 43 percent read the Philadelphia Inquirer, and 9 percent read both. What percent read at least one of these publications?

a. 64%        b. 79%         c. 82%            d. 73%

B. What is the probability of getting at least one 10 in twenty rolls of a pair of dice?

a. (33/36)20         b. 1-(3/36)20        c.  1- (33/36)20       d. 1-20(33/36)           

C. A certain US Senator is a devoted family man and lives modestly. Given these facts, which is more likely

a. He took a bribe from a lobbyist  

b. He took a bribe from a lobbyist and used it to pay for his daughter’s medical needs.

c. equally likely   

Solutions

Expert Solution

A.

P(read the New Yorker) = 0.39

P(read the Philadelphia Inquirer) = 0.43

P( read both the publications) = 0.09

P(read at least these publications) =??

Using the formula, P(AUB) = P(A) + P(B) - P(A B)

P(read at least these publications)

= P(read the New Yorker) + P(read the Philadelphia Inquirer) - P( read both the publications)

= 0.39 + 0.43 - 0.09 = 0.73

73% read at least these publications.

B.

The probability of obtaining a 10 is 3/36.

Now out of 20 rolls, we need to find the probability of getting at least one 10 in twenty rolls of a pair of dice.

P(X 1) = 1 - P(X<1) = 1 - P(X = 0) = 1 - P(None) =

= 0.8245195

C.

A certain US Senator is a devoted family man and lives modestly.

The answer is he took a bribe from a lobbyist and used it to pay for his daughter’s medical needs.


Related Solutions

Probability and Statistics Could you please solve the following questions with specifying the answers A. If...
Probability and Statistics Could you please solve the following questions with specifying the answers A. If you win $100 for rolling a 12, win $10 for rolling a number less than 6, and lose $4 for rolling anything else, what are your expected winnings per play? a. $1.94          b. $4.72         c. $2.78         d. -$.68 B. A committee of 7 is be selected from a group of 22 people. How many such committees are possible? a. 22,254      b. 319,770      c, 170,544     d. 101,458 C. A woman plans...
Probability and Statistics Could you please solve the following questions with specifying the answers A. What...
Probability and Statistics Could you please solve the following questions with specifying the answers A. What is the probability of getting a sum of exactly 11 when rolling a pair of dice given that the sum is at least 9 4/36        b. 2/10        c. 9/36        d. 4/9 B. Scores on a test are normally distributed with a mean of 520 and a standard deviation of 50. George scores 622 on the test. He was in which percentile approximately? 84th percentile      b. 98th percentile   c....
Probability and Statistics Could you please solve the following questions with specifying the answers A. When...
Probability and Statistics Could you please solve the following questions with specifying the answers A. When finding confidence intervals, the interval is smaller if a.sample size and standard deviation are bigger b.sample size and standard deviation are smaller c.sample size is bigger, but the standard deviation is smaller d.sample size is smaller, but standard deviation is bigger.     B. If the birth weights of the babies born annually in a hospital is Normal with a mean of 5 pounds 10 ounces...
Probability and Statistics Could you please solve the following questions with specifying the answers A. What...
Probability and Statistics Could you please solve the following questions with specifying the answers A. What is the probability that z, the standard normal distribution, is less than 1.75 standard deviations below the mean of zero? a. 5%      b. 4%      c. 6%      d. 7.4% B. If two random samples of the heights of adult males in New York are taken, one of 400, the other of 900 people, which one would likely have the larger range from shortest to tallest? a. the 400...
home / study / math / statistics and probability / statistics and probability questions and answers...
home / study / math / statistics and probability / statistics and probability questions and answers / a recent study conducted by the state government attempts to determine whether the voting public ... Question: A recent study conducted by the state government attempts to determine whether the voting public ... A recent study conducted by the state government attempts to determine whether the voting public supports a further increase in cigarette taxes. The opinion poll recently sampled 1,500 voting age...
home / study / math / statistics and probability / statistics and probability questions and answers...
home / study / math / statistics and probability / statistics and probability questions and answers / you were assigned to an audit of a wholly owned subsidiary of cba. you began with assessing ... Question: You were assigned to an audit of a wholly owned subsidiary of CBA. You began with assessing inter... You were assigned to an audit of a wholly owned subsidiary of CBA. You began with assessing internal controls over purchasing, specifically purchase transactions. Based on...
home / study / math / statistics and probability / statistics and probability questions and answers...
home / study / math / statistics and probability / statistics and probability questions and answers / dr. francis has determined the sequence of a gene from four fish species. below, it is described ... Question: Dr. Francis has determined the sequence of a gene from four fish species. Below, it is described ... Dr. Francis has determined the sequence of a gene from four fish species. Below, it is described a segment of the sequence of this gene for...
home / study / math / statistics and probability / statistics and probability questions and answers...
home / study / math / statistics and probability / statistics and probability questions and answers / we are going to play a game of chance. we will roll a die (half of a pair of dice) and if it ... Your question has been answered Let us know if you got a helpful answer. Rate this answer Question: We are going to play a game of chance. We will roll a die (half of a pair of dice) and...
home / study / math / statistics and probability / statistics and probability questions and answers...
home / study / math / statistics and probability / statistics and probability questions and answers / a survey found that​ women's heights are normally distributed with mean 62.3 in. and standard ... Your question has been answered Let us know if you got a helpful answer. Rate this answer Question: A survey found that​ women's heights are normally distributed with mean 62.3 in. and standard dev... A survey found that​ women's heights are normally distributed with mean 62.3 in....
home / study / math / statistics and probability / statistics and probability questions and answers...
home / study / math / statistics and probability / statistics and probability questions and answers / Two Machines Are Used For Filling Plastic Bottles With A Net Volume Of 16.0 Ounces. The Filling ... Question: Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The filling p... Edit question Two machines are used for filling plastic bottles with a net volume of 16.0 ounces. The filling processes can be assumed to be normal....
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT