Homework Answers
f) here A denote the event that the students attends the college of William and Mary and B denote the event that the student graduated from high school in Virginia. since A does not depends on B, therefore A and B are Independent.
g) Since A is event of person's earned P.HD before 1950, and B is the event that the person is female, since a female can be such person who have earned P.HD before 1950, therefore A and B are dependent.
h) since here the income of persons living in household does not depend of living in new Orleans before Katrina, therefore A and B are Independent.
i) since there can be a couple who devorced in 2005 will be marry in 1995, therefore A and B is dependent.
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math 11. For each of the following pairs of events, explain why A and B are...
math 11. For each of the following pairs of events, explain why A and B are...
math
11. For each of the following pairs of events, explain why A and B are dependent or independent (a) Consider the population of U.S. citizens, from which a person is randomly selected. Let A denote the event that the person is a member of a chess club and let B denote the event that the person is a woman. (b) Consider the population of male U.S. citizens who are 30 years of age. A man is selected at random...
math 10. It is a curious fact that approximately 85% of all U.S. residents who are...
math
10. It is a curious fact that approximately 85% of all U.S. residents who are struck by lightning are men. Consider the population of U.S. residents, from which a person is randomly selected. Let A denote the event that the person is male and let B denote the event that the person will be struck by lightning. (a) Estimate P(AlB) and P(A B) (b) Compare P(A|B) and P(A). Are A and B independent events? (c) Suggest reasons why P(AB)...
im a little confused on how to work this problem. please help explain how and why....
im a little confused on how to work this problem. please help
explain how and why. thank you.
Exercise 12. Consider randomly selecting a student at a large university, and let A be the event that the selected student has a Visa card and B the analogous event for MasterCard. Suppose that P(A) = 0.6 and P(B) = 0.4. a. Could it be the case that P(ANB) = 0.5? Why or why not? b. From now on, suppose that P(ANB)...
need answers!!! i Find the indicated probability by using the complementation rule. 13) The age distribution...
need answers!!!
i Find the indicated probability by using the complementation rule. 13) The age distribution of students at a community college ls Ewer 13) Under 21 21-24 25-28 29-32 33-36 37-40 Over 40 144 102 85 1457 A student from the community college is selected at random. Find the student is under probability that the 37 years old. Give your answer as a decimal rounded to three decimal places A) 0.070 B) 0.034 C) 0.092 D) 0.908 Find the...
Test No. 3 ( (Form B)Math 100 Spring 2019 I. Multiple-choice (Circle the letter of your...
Test No. 3 ( (Form B)Math 100 Spring 2019 I. Multiple-choice (Circle the letter of your answer): Questions No. 1 through No. 5 refer to the following: A continuous s has a normal distribution with the mean of 80 and standard deviation of 15 random variable x (1) The mode of the variable s is A 80 (B) 15 (C) 40 (D) Unknown (2) The z-score for the mode of x : (A) I (3) The p (B) 0.S ity...
The boxplots below show the distribution of test scores for two classes. Class A Class B...
The boxplots below show the distribution of test scores for two classes. Class A Class B 0 80 90 100 10 20 30 40 50 60 70 Test scores Which of the following statements is a valid conclusion that can be drawn from the boxplots? Choose all that apply. At least 25% of each class earned a B (80 or higher on the exam). Class B has more students than class A. Class A and B have approximately the same...
help please!!! The following table gives the number (lin millions) of men and women over the age of 24 at each level of educational attainment Did not College a Total Completed Some Gende...
help please!!!
The following table gives the number (lin millions) of men and women over the age of 24 at each level of educational attainment Did not College a Total Completed Some Gender complete high school college graduate high school Males 12.9 15.9 96.3 30.7 90.8 128 41.31037 103.7 Females 12.8 25.7 31.8 17.8 200 62.5 78.1 Total 33.7 A What is the probability that a randomly selected person over the age of 24 did not complete high school?(answer with...
tnis p your answer sheets 1. A single card is drawn from 52-card deck (10) Let A denotes the event that the card is red and B denotes the e is spade. Are the events being? a) Mutually exclusive?...
tnis p your answer sheets 1. A single card is drawn from 52-card deck (10) Let A denotes the event that the card is red and B denotes the e is spade. Are the events being? a) Mutually exclusive? b) Dependent? What is your conclusion and B? Any exception? 2. Two team (A and B) play a series of baseball games. The team who v five-game-series wins the series. Consider A has home-field advantag probability of winning 0.7 if it...
1. State whether each of the following statements is true or false, and explain why. a....
1. State whether each of the following statements is true or false, and explain why. a. An example of a discouraged worker is someone who is suddenly laid off from his/her job, is still looking for work, but has received no other job offers at the moment. b. An increase in the unemployment rate is only due to a smaller fraction of the population being employed. c. Natural unemployment includes temporary unemployment caused by new labor entry or job-switching, as...
1- In an experiment, college students were given either four quarters or a $1 bill and...
1- In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Students Given Four Quarters Students Given a $1 Bill Purchased Gum 27 12 kept the Money 16 28 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters The...
math
11. For each of the following pairs of events, explain why A and B are dependent or independent (a) Consider the population of U.S. citizens, from which a person is randomly selected. Let A denote the event that the person is a member of a chess club and let B denote the event that the person is a woman. (b) Consider the population of male U.S. citizens who are 30 years of age. A man is selected at random...
math
10. It is a curious fact that approximately 85% of all U.S. residents who are struck by lightning are men. Consider the population of U.S. residents, from which a person is randomly selected. Let A denote the event that the person is male and let B denote the event that the person will be struck by lightning. (a) Estimate P(AlB) and P(A B) (b) Compare P(A|B) and P(A). Are A and B independent events? (c) Suggest reasons why P(AB)...
im a little confused on how to work this problem. please help
explain how and why. thank you.
Exercise 12. Consider randomly selecting a student at a large university, and let A be the event that the selected student has a Visa card and B the analogous event for MasterCard. Suppose that P(A) = 0.6 and P(B) = 0.4. a. Could it be the case that P(ANB) = 0.5? Why or why not? b. From now on, suppose that P(ANB)...
need answers!!!
i Find the indicated probability by using the complementation rule. 13) The age distribution of students at a community college ls Ewer 13) Under 21 21-24 25-28 29-32 33-36 37-40 Over 40 144 102 85 1457 A student from the community college is selected at random. Find the student is under probability that the 37 years old. Give your answer as a decimal rounded to three decimal places A) 0.070 B) 0.034 C) 0.092 D) 0.908 Find the...
Test No. 3 ( (Form B)Math 100 Spring 2019 I. Multiple-choice (Circle the letter of your answer): Questions No. 1 through No. 5 refer to the following: A continuous s has a normal distribution with the mean of 80 and standard deviation of 15 random variable x (1) The mode of the variable s is A 80 (B) 15 (C) 40 (D) Unknown (2) The z-score for the mode of x : (A) I (3) The p (B) 0.S ity...
The boxplots below show the distribution of test scores for two classes. Class A Class B 0 80 90 100 10 20 30 40 50 60 70 Test scores Which of the following statements is a valid conclusion that can be drawn from the boxplots? Choose all that apply. At least 25% of each class earned a B (80 or higher on the exam). Class B has more students than class A. Class A and B have approximately the same...
help please!!!
The following table gives the number (lin millions) of men and women over the age of 24 at each level of educational attainment Did not College a Total Completed Some Gender complete high school college graduate high school Males 12.9 15.9 96.3 30.7 90.8 128 41.31037 103.7 Females 12.8 25.7 31.8 17.8 200 62.5 78.1 Total 33.7 A What is the probability that a randomly selected person over the age of 24 did not complete high school?(answer with...
tnis p your answer sheets 1. A single card is drawn from 52-card deck (10) Let A denotes the event that the card is red and B denotes the e is spade. Are the events being? a) Mutually exclusive? b) Dependent? What is your conclusion and B? Any exception? 2. Two team (A and B) play a series of baseball games. The team who v five-game-series wins the series. Consider A has home-field advantag probability of winning 0.7 if it...
1. State whether each of the following statements is true or false, and explain why. a. An example of a discouraged worker is someone who is suddenly laid off from his/her job, is still looking for work, but has received no other job offers at the moment. b. An increase in the unemployment rate is only due to a smaller fraction of the population being employed. c. Natural unemployment includes temporary unemployment caused by new labor entry or job-switching, as...
1- In an experiment, college students were given either four quarters or a $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts (a) through (c) below. Students Given Four Quarters Students Given a $1 Bill Purchased Gum 27 12 kept the Money 16 28 a. Find the probability of randomly selecting a student who spent the money, given that the student was given four quarters The...
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