The chaperones for an upcoming junior high dance want to see which soda to serve. They ask 50 students to fill out a survey about their favorite sodas. If 32 out of 50 students prefer root beer, how many of the 150 dance attendees would you expect to prefer root beer? Be sure to show all of your work.

Q: A business with 150 workers pays 113 employees P45.50 per hour and 37 employees P51.25 per hour.…

A: Given  n=113, X1=45.5, n=37, X2=51.25  We want to calculate average.

Q: A senior inspector will inspect 10 rooms this week. (d) To have a fair representation, how many…

A:

Q: Before the final exam, a student has test scores of 72, 80, 65, 78, and 60. If the final exam counts…

A: Let the grade in the final exam will be x. before the final exam, the average score of the student…

Q: To estimate the number of bass in a lake, a biologist catches and tags 24 bass. Several weeks later,…

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Q: If you expect to have four times as many women (compared to men) at a 20-person Emergency Room…

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Q: Phyllis teaches marketing at a local college. She wants to select one freshman and one sophomore to…

A: Given info: Phyllis teaches marketing at a local college. She wants to select one freshman and one…

Q: Suppose your grades on three math exams are 80, 93, and 91. What grade do you need on your next exam…

A: Given:

Q: Mrs. Walton bought 2 small, 1 medium, and 1 large orange drinks at the Sunshine Orange Palace for…

A:

Q: if i have a 73.8 average in math, and I get a 30% mark in my last test, what we

A: Introduction: a number obtained by multiplying two or more quantities and then dividing the total by…

Q: the average ( arthimetic mean ) of three  numbers is equal to 56 . if one of the numbers is 25 ,…

A:

Q: A donut store sells packages store have for sale?

A: Introduction: A function is a method or a relationship that connects each member 'a' of a non-empty…

Q: I have a 79% in my earth and space class and I have a final worth 50 points if I get a 100 percent…

A: Given information: The current grade (C) is 79%. The grade that is wanted on the final (G) = 100%.…

Q: The area of Norway is 24% more than the area of Colorado, so Norway's area is what percentage of…

A: Let x be the area Colorado. The area of Norway is,

Q: for a sport radio show, you are asked to research the question whether more home runs are hit

A:

Q: In a class of 24 students, 23 exams are graded. The average for the class was 85. What would the…

A: Given, Class contain 24 in which 23 have already graded. The average of these 23 students was 85.

Q: Solve by the method of your choice: How many different ways can a director select from 20 male…

A: How many different ways can a director select from 20 male actors and cast the roles of Mark, Roger,…

Q: Among survey respondents who thought the economy was getting better, what fraction were Democrats?…

A: Given -   Better Same Worse Total Republican 38 104 44 186 Democrat 12 87 137 236 None 21…

Q: Describe two everyday situations in which items are chosen and the order of selections does not…

A: Situations where the order of selection doesn't matter can be selected using combinations.

Q: A restaurant has 20 items on their menu.  If you choose four different things to eat where the order…

A:

Q: If jeans are normally priced at $45 are 12% off, what is the sales price? Your answer

A: Given that Jeans are normally priced at $45 are 12% off. To find The sales price.

Q: A local radio station surveyed 200 students from one high school to determine their favorite music.…

A: Given Data: P(Rock music)=0.45 P(Rap Music)=0.35 P(Country Music)=0.2   n=3000

Q: In a town, 39% of the citizens contributed to the Republicans, 49% contributed to the Democrats, and…

A:

Q: If the mean of five values is 64, the sum of these values is . * О 318 O 314 О 320 О 321

A: The solution is given as

Q: n 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: It is given that the median family income in the United States is $66,650.

Q: For a particular event, 673 tickets were sold for a total of $5103. If students paid $6 per ticket…

A:

Q: John has grades of 86, 88, and 78 on his first three tests in geometry. If he wants an average of at…

A:

Q: Molly recorded how many nuts of each type she blindly grabbed from a can of mixed nuts.     walnuts…

A: The probability of walnuts is 50/100 =1/2

Q: On four exams,Wallace's grades were 79,93,91 and 68. what grade must he obtain on his fifth exam to…

A: Let Wallace's grade in the 5th exam be x.

Q: In a poll of 2600 adults in a certain country, 1742 of the adults said that they had online access…

A:

Q: During a week in September 2009, the Nielsen ratings for Family Guy were 8.1/12 which means 8.1 out…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Bobby-Joe takes a 25-question test for which he receives 4 points for each correct answer and loses…

A:

Q: Leo was looking at a photo. Val asked him, "Whose picture are you looking at?" He replied: "I don't…

A: This is a logical type question. We have to find the relation here.

Q: All of the 1,020 students at a local high school must enroll in a foreign language course. If 269…

A: The detailed solution is given in the next step.

Q: At a local Dunkin'donuts, a survey showed that out of 1280 customers eating lunch, 640 ordered…

A:

Q: Chris was given a large bag of cookies and ate one third of the cookies before stopping as he was…

A: It is a straight forward question. What wr have to do is,  suppose the amount in the beginning and…

Q: A student completed an exam and their z score was -1.57. What percentage of students did better on…

A: We know that Z-score = (x - mu)/sigma  mu= 0 , sigma =1   X~N( 0,1)

Q: Tim and Tom are both members of the school's 10 person cross-country team.  The team is told to line…

A: Given : Tim and Tom are both members of the school's 10 person cross-country team. The team is told…

Q: Ben is studying photography, and he was asked to submit 6 photographs from his collection to exhibit…

A: Combinations: The number of combinations of r items selected from n items is, nr=n!n-r!r! Ben has 15…

Q: Lastly find two customers who set a favorite menu items on the equivalent or equal.

A: Explanation are as follows

Q: 4 were on time and 2 were late, how many of the next 12 trains would you expect to be on time?

A: The probability that the train would be on time is, Pon time=46=23 The probability that the train…

Q: Margarette scored to 94, 95, 89, 89, 98,96 and 92 in 7 quizzes in Mathematics 10. If there are 8…

A: Given scores in the quizzes are: 94, 95, 89, 89, 98, 96, 92

Q: Karen wants to advertise how many chocolate chips are in each Big Chip cookie at her bakery. She…

A: Here it is given that  No of Samples (n) = 44 Sample mean (x) = 5.1 Standard Deviation (s) = 3.5

Q: In a poll of 2300 adults in a certain country, 1426 of the adults said that they had online access…

A: In a poll of 2300 adults in a certain country, 1426 of the adults said that they had online access…

Q: A survey found that 31% of Americans watch the fireworks on the 4th of July from their TV. If 20…

A:

Q: In 2015, the median family income in the United States was $66,650. (Source: U.S. Census Bureau) If…

A: It is given that, In 2015, the median family income in the United States was $66,650. If the 90th…

Q: Three-fourth of the students in the class have an average IQ of 120 and the rest have an average IQ…

A:

Q: Kerry was given 10 numbers that had a sum of 330 and was asked to find the mode. She was told that…

A: Here we need to find the mode of 10 numbers. Given that the sum of 10 numbers is 330 and also the…

Q: While at the Mall of America, Consumer Guide Report surveyed 500 people and asked them to list the…

A: