Question 1

Construct a frequency polygon:
-

Accepted Answer

A)    
B)    
A)    
B)

Question 2

Following is a sample of the percent increases in the price of a house from 2000 to 2005 in 8 regions of the U. S.
75 130 145 150 150 225 225 300
Find the median.

Accepted Answer

A)  225 
B)  150 
C)  137.5 
D)  300 
A)  225 
B)  150 
C)  137.5 
D)  300

Question 3

The frequency distribution below gives the weight in grams of 100 laboratory mice. What is the probability that the weight of a healthy mouse selected randomly from the sample will be more than 52 grams?

Accepted Answer

A)  0.33 
B)  0.67 
C)  0.50 
D)  0.23 
A)  0.33 
B)  0.67 
C)  0.50 
D)  0.23

Question 4

If a baseball player has a batting average of 0.420, what is the probability that the player will get at least 2 hits in the next four times at bat?

Accepted Answer

A)  0.333 
B)  0.042 
C)  0.50 
D)  0.559 
A)  0.333 
B)  0.042 
C)  0.50 
D)  0.559

Question 5

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number.
-114.2

Accepted Answer

A)  2.12 
B)  1.2 
C)  2.4 
D)  1.16 
A)  2.12 
B)  1.2 
C)  2.4 
D)  1.16

Question 6

Here are the commutes (in miles) for a group of six students. Find the standard deviation.
14.7 16.3 34.0 33.7 22.6 16.0
Round to two decimal places.

Accepted Answer

A)  3141.91 
B)  3540.25 
C)  33.93 
D)  8.93 
A)  3141.91 
B)  3540.25 
C)  33.93 
D)  8.93

Question 7

Construct a bar graph of the given frequency distribution:
-The frequency distribution indicates the number of fish caught by each fisherman in a group of 250 fishermen.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 8

Evaluate   for the given values of n, x, and p.
-n = 30, x = 12, p = 0.20

Accepted Answer

A)  0.0028 
B)  0.0139 
C)  0.0064 
D)  0.1082 
A)  0.0028 
B)  0.0139 
C)  0.0064 
D)  0.1082

Question 9

The life expectancy (in hours) of a fluorescent tube is normally distributed with mean 7,000 and standard deviation 1,000. Find the probability that a tube lasts for more than 8,900 hours.

Accepted Answer

A)  0.9719 
B)  0.0287 
C)  0.9713 
D)  0.0281 
A)  0.9719 
B)  0.0287 
C)  0.9713 
D)  0.0281

Question 10

Construct a broken-line graph of the data in the table:
-The following table gives the total amount of precipitation during the given months. Use time on the horizontal scale for your line graph.

Accepted Answer

Answers ma

Question 11

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number.
-125

Accepted Answer

A)  2 
B)  3 
C)  0 
D)  1 
A)  2 
B)  3 
C)  0 
D)  1

Question 12

Evaluate   for the given values of n, x, and p.
-n = 6, x = 3, p =

Accepted Answer

A)  0.0322 
B)  0.0154 
C)  0.0286 
D)  0.0536 
A)  0.0322 
B)  0.0154 
C)  0.0286 
D)  0.0536

Question 13

Construct a pie graph, with sectors given in percent, to represent the data in the given table:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 14

Construct a pie graph, with sectors given in percent, to represent the data in the given table:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 15

Find the mode for the data set:
3, 13, 30, 3, 8, 30, 13, 8, 6, 3, 3, 3, 3, 8, 3

Accepted Answer

A)  9.6 
B)  7 
C)  3 
D)  13 
A)  9.6 
B)  7 
C)  3 
D)  13

Question 16

In a certain college, 33% of the math majors belong to foreign student. If 10 students are selected at random from the math majors, that is the probability that no more than 6 are foreign?

Accepted Answer

A)  0.9815 
B)  0.913 
C)  0.9846 
D)  0.0547 
A)  0.9815 
B)  0.913 
C)  0.9846 
D)  0.0547

Question 17

Construct a pie graph, with sectors given in percent, to represent the data in the given table:
-

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 18

Given the frequency distribution below, what is the probability of the hourly wage of a person chosen at random from the sample being less than $4.495?

Accepted Answer

A)  0.08 
B)  0.20 
C)  0.80 
D)  0.75 
A)  0.08 
B)  0.20 
C)  0.80 
D)  0.75

Question 19

Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent:
-The mean clotting time of blood is 7.35 seconds, with a standard deviation of 0.35 seconds. What is the probability that blood clotting time will be less than 7 seconds?

Accepted Answer

A)  14% 
B)  16% 
C)  15% 
D)  84% 
A)  14% 
B)  16% 
C)  15% 
D)  84%

Question 20

Construct a frequency polygon:
-

Accepted Answer

A)    
B)    
A)    
B)

Construct a frequency polygon: -

Following is a sample of the percent increases in the price of a house from 2000 to 2005 in 8 regions of the U. S. 75 130 145 150 150 225 225 300 Find the median.

The frequency distribution below gives the weight in grams of 100 laboratory mice. What is the probability that the weight of a healthy mouse selected randomly from the sample will be more than 52 grams?

If a baseball player has a batting average of 0.420, what is the probability that the player will get at least 2 hits in the next four times at bat?

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number. -114.2

Here are the commutes (in miles) for a group of six students. Find the standard deviation. 14.7 16.3 34.0 33.7 22.6 16.0 Round to two decimal places.

Construct a bar graph of the given frequency distribution: -The frequency distribution indicates the number of fish caught by each fisherman in a group of 250 fishermen.

Evaluate for the given values of n, x, and p. -n = 30, x = 12, p = 0.20

The life expectancy (in hours) of a fluorescent tube is normally distributed with mean 7,000 and standard deviation 1,000. Find the probability that a tube lasts for more than 8,900 hours.

Construct a broken-line graph of the data in the table: -The following table gives the total amount of precipitation during the given months. Use time on the horizontal scale for your line graph.

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number. -125

Evaluate for the given values of n, x, and p. -n = 6, x = 3, p =

Construct a pie graph, with sectors given in percent, to represent the data in the given table: -

Construct a pie graph, with sectors given in percent, to represent the data in the given table: -

Find the mode for the data set: 3, 13, 30, 3, 8, 30, 13, 8, 6, 3, 3, 3, 3, 8, 3

In a certain college, 33% of the math majors belong to foreign student. If 10 students are selected at random from the math majors, that is the probability that no more than 6 are foreign?

Construct a pie graph, with sectors given in percent, to represent the data in the given table: -

Given the frequency distribution below, what is the probability of the hourly wage of a person chosen at random from the sample being less than $4.495?

Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent: -The mean clotting time of blood is 7.35 seconds, with a standard deviation of 0.35 seconds. What is the probability that blood clotting time will be less than 7 seconds?

Construct a frequency polygon: -

Linear Equations and Graphs

Functions and Graphs

Mathematics of Finance

Systems of Linear Equations; Matrices

Linear Inequalities and Linear Programming

Linear Programming: The Simplex Method

Logic, Sets, and Counting

Probability

Markov Chains

Games and Decisions

Appendix A: Basic Algebra Review

Appendix B: Special Topics

Filters

Exam 10: Data Description and Probability Distributions

Construct a frequency polygon: -

Following is a sample of the percent increases in the price of a house from 2000 to 2005 in 8 regions of the U. S. 75 130 145 150 150 225 225 300 Find the median.

The frequency distribution below gives the weight in grams of 100 laboratory mice. What is the probability that the weight of a healthy mouse selected randomly from the sample will be more than 52 grams?

If a baseball player has a batting average of 0.420, what is the probability that the player will get at least 2 hits in the next four times at bat?

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number. -114.2

Here are the commutes (in miles) for a group of six students. Find the standard deviation. 14.7 16.3 34.0 33.7 22.6 16.0 Round to two decimal places.

Construct a bar graph of the given frequency distribution: -The frequency distribution indicates the number of fish caught by each fisherman in a group of 250 fishermen.

Evaluate for the given values of n, x, and p. -n = 30, x = 12, p = 0.20

The life expectancy (in hours) of a fluorescent tube is normally distributed with mean 7,000 and standard deviation 1,000. Find the probability that a tube lasts for more than 8,900 hours.

Construct a broken-line graph of the data in the table: -The following table gives the total amount of precipitation during the given months. Use time on the horizontal scale for your line graph.

Given a normal distribution with mean 120 and standard deviation 5, find the number of standard deviations the measurement is from the mean. Express the answer as a positive number. -125

Evaluate for the given values of n, x, and p. -n = 6, x = 3, p =

Construct a pie graph, with sectors given in percent, to represent the data in the given table: -

Construct a pie graph, with sectors given in percent, to represent the data in the given table: -

Find the mode for the data set: 3, 13, 30, 3, 8, 30, 13, 8, 6, 3, 3, 3, 3, 8, 3

In a certain college, 33% of the math majors belong to foreign student. If 10 students are selected at random from the math majors, that is the probability that no more than 6 are foreign?

Construct a pie graph, with sectors given in percent, to represent the data in the given table: -

Given the frequency distribution below, what is the probability of the hourly wage of a person chosen at random from the sample being less than $4.495?

Assume the distribution is normal. Use the area of the normal curve to answer the question. Round to the nearest whole percent: -The mean clotting time of blood is 7.35 seconds, with a standard deviation of 0.35 seconds. What is the probability that blood clotting time will be less than 7 seconds?

Construct a frequency polygon: -

Linear Equations and Graphs

Functions and Graphs

Mathematics of Finance

Systems of Linear Equations; Matrices

Linear Inequalities and Linear Programming

Linear Programming: The Simplex Method

Logic, Sets, and Counting

Probability

Markov Chains

Games and Decisions

Appendix A: Basic Algebra Review

Appendix B: Special Topics

Filters