Suppose that a course has 3 sections with 50, 70, and 80 students. Let's say we randomly pick one of the 3 sections, and give all of their students a spooky costume. What's the expected number of costumes we'd give out?

Q: A very large pool consists of 26% Democrats, 33% Republicans, and the rest independents. What is the…

A: X~ Binomial (n , p)  p = 1 -.26-.33 = 0.41 ____________________________

Q: Suppose that a class contains 15 boys and 30 girls, and that 10 students are to be selected at…

A: If n objects are drawn without replacement from N objects of which a objects are of type 1 and b…

Q: There are 10 name tags in a sack, and a teacher draws one tag every time and return the tag to the…

A: There are 10 name tags in a sack, and a teacher draws one tag every time and returns the tag to the…

Q: A group of 15 undergraduate and 15 graduate students are in a room. If 10 of the 30 students are…

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Q: A group of 300 people are being split into teams of 3 (where order of teams and order within a team…

A: Given that: Number of people in a group, n = 300 Here, each team containing 3 people, x = 3

Q: A drum contains 4 black balls, 5 red balls and 6 green balls. If 5 balls are selected at random,…

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Q: exactly one of the three colleges. Based on a survey, 25% of the students attend College A, 35% of…

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Q: How could you use a​ random-digit generator or​ random-number table to simulate rain if you knew…

A: Given How could you use a​ random-digit generator or​ random-number table to simulate rain if you…

Q: from a group of 3 men and 4 women, a delegation of 2 is selected. What is the expected number of men…

A: We have given that 3 men and 4 men. Let p be the probability of men  Let X be the number of men.…

Q: A box has four cards numbered 1, 2, 3, and 4 Abdul will toss a coin once and record the toss as…

A: In a box there are 4 cards and toss a coin which had two output Head and Tail.

Q: In a certain town, 25% of the students failed math, 15% failed chem and 10% failed both math and…

A: Hi there! Thanks for the question, since there are multiple questions we have solved the second…

Q: A box has three cards numbered 1, 2, and 3 A bag has three balls labeled A, B, and C Shen will…

A: The box has cards numbered 1, 2 and 3The bag has balls labeled A, B and C

Q: If there are eight questions and each question has four answer choices, what is the probability she…

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Q: A pack contains 4 blue, 2 red and 3 black pens. If 2 pens are drawn at random from the pack, NOT…

A: Given a pack contains 4 blue, 2 Red and 3 black balls.

Q: Suppose that we have a standard 52 card deck and suppose that it takes A cards until we get an ace.…

A: In a 52 card deck there are 4 ace. The number of ways a spade can be chosen in any trial = 4.  Hence…

Q: Suppose that a course has 3 sections with 50, 70, and 80 students, respectively. We random pick one…

A:

Q: 1. In a class of 30 students, there are 14 girls and 16 boys. Of the girls, 5 have blonde hair and 9…

A: Given                                  Girls              Boys Blonde Hair               5…

Q: If a class has 8 boys and 10 girls, determine the following ( assuming that the order of selection…

A: In question, Given that If a class has 8 boys and 10 girls. Then we'll find,  (a). The number of…

Q: A box has four cards numbered 1, 2, 3, and 4. Rachel will toss a coin once and record the toss as…

A:

Q: In a particular lottery, 4 winning numbers are drawn from a set of 36 numbers. What is the…

A: Solution:

Q: In a class of 40 students, there are 20 girls and 20 boys. Eight are A students, and three of these…

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Q: A box has four cards numbered 1, 2, 3, and 4 Felipe will toss a coin once and record the toss as…

A: Given data: The number of times a coin tossed is n=1. The given numbers written on the cards are 1,…

Q: For this problem, assume that there are 6 men and 4 women on the committee, and that a subcommittee…

A: If there are all the same sex then there can be two outcomes: 1) All the men: We can select 3 men…

Q: One lot contains 2 boxes with organic tomatoes and 8 boxes with non-organic tomatoes; the boxes lost…

A: Number of organic tomato boxes are 2. Number of inorganic tomato boxes are 8.

Q: From a group of 3 men and 4 women, a delegation of 2 is selected. What is the expected number of men…

A: Introduction:The probability model for an experiment, where k successes are obtained in n trials…

Q: Suppose you have 7 coins in your pocket: 4 dimes and 3 quarters. 2 coins are selected simultaneously…

A: Solution: From the given information, there are 4 dimes and 3 quarters. Total number of coins is 7.

Q: From a group of 3 women and 5 ​men, a delegation of 3 is selected. Find the expected number of women…

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Q: The sample space contains 6 As and 4 Bs. What is the probability that a randomly selected set of 3…

A: Given: Number of sample space of A and B=10 Number of A's=6 Number of B's=4 The objective is to find…

Q: A committee of 2 people is to be chosen from 5 women and 6 men. What is the probability at least one…

A: We have to use concept of A given B.

Q: A very large pool consists of 22% Democrats, 39% Republicans, and the rest independents. What is the…

A: Given, P(Democrats) = 0.22, P(Republicans) = 0.39, P(independent) = 1-0.22-0.39 = 0.39

Q: Assume that there are 7 white mice and 5 black mice to choose from, and you randomly pick 4 mice.…

A: To work out the probability of the required event

Q: ered 1-15, what is the probability that person 1 choosses a number strictly greater than the number…

A: As the numbers are from 1 to 15: and 4 groups contain the same numbers: Group 1 Group 2 Group 3…

Q: Imagine you have an bag containing 5 red, 3 blue, and 2 orange marbles in it. Answer the following…

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Q: A drum contains 4 black balls, 5 red balls and 6 green balls. If 5 balls are selected at random,…

A: Solution-: We have, number of black balls =4. Number of red balls =5, Number of green balls =6 Total…

Q: In a certain town, 60 percent of voters are in favor of a given ballot measure and 40 percent are…

A: Given data:  60% = voters are in favor of a given ballot measure 40%  = voters are opposed. For…

Q: Suppose that 68% of people own dogs and suppose you pick two people at random. find the probability…

A: From the given information, the percent of people own dogs is 68% and the number of selected people…

Q: A professor is randomly choosing a group of three students to do an oral presentation. In her class…

A: The total number of ways by which 3 students can be selected from the group of 15 students are given…

Q: In a card game, a deck has 10 green cards, 6 red cards, 3 blue cards, and a purple card. Players…

A: Solution

Q: Suppose that a course has 3 sections with 50, 70, and 80 students, respectively. (a) We randomly…

A: Given Data: a course has 3 sections with 50, 70, and 80 students

Q: A box has four cards numbered 1, 2, 3, and 4. Felipe will toss a coin once and record the toss as…

A:

Q: 8 For this problem, assume there are 3 grey females, 4 grey males, 2 white females, and 3 white…

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Q: A committee of 2 people is to be chosen from 6 women and 4 men. What is the probability at least one…

A:

Q: A player tosses two coins, if two head appears he wins 4, if one head appears he wins 2, but if two…

A:

Q: Suppose that a district consists of 100 female voters and 200 male voters. If a group of ten voters…

A: Given problem Given that   Suppose that a district consists of 100 female voters and 200 male…

Q: In a batch of 1900 toys, there are, on average, 10 defective ones. If a random sample of 140 is…

A: Given: Total number of toys = 1900 Number of defective toys = 10 Number of toys selected = 140…

Q: consider a political discussion group of 6 democrats, 5 republicans, and 3 independents.  If two…

A: Given that  consider a political discussion group of 6 democrats, 5 republicans, and 3 independents.…

Q: In a class of 30 students, there are 14 girls and 16 boys. Of the girls, 5 have blonde hair and 9…

A: Answer is mentioned below

Q: If 4 coins are tossed 256 times, find the expected frequencies of 4, 3, 2, 1 and 0 heads, when p 1/4…

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Q: Suppose a card is drawn randomly from an ordinary deck of playing cards and then put back in the…

A: Given - Card is randomly drawn from a deck of 52 playing cards. Number of outcomes = 52

Q: A box contains 4 red and 7 green marbles. If 10 marbles are drawn without replacement, what is the…

A: