Suppose that about 85% of graduating students attend their graduation. A group of 25 graduating students is randomly chosen.

Q: A test has 10 multiple choice questions, and each question has 5 possible answers. How many answers…

A: Given: Number of questions, n=10 Each question has 5 possible answers.

Q: Public Opinion reported that 5% of Americans are afraid of being alon night. If a random sample of…

A:

Q: There is money to send three of seven city council members to a conference in Honolulu. All want to…

A: According to the combination rule, if r distinct items are to be chosen from n items without…

Q: There are 4 quarters and 2 dimes and 1 nickel in a coin pouch. Two coins are selected at random. If…

A:

Q: A small ice cream parlor has had great success over the past several years and is interested in…

A: Given information: Number of customers randomly selected in the sample, n = 56 Number of customers…

Q: for its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listenedto music…

A:

Q: to survey clients at a massage-therapy spa, the researcher alphabetically lists all of the customers…

A: Given that, The researcher alphabetically listed all of the customers the spa had last month. Then…

Q: The percent of licensed U.S. drivers (from a recent year) that are female is 48.60. Of the females,…

A: It is given that, 48.60% drivers are female.

Q: A district in the Ashanti region town has 102 towns and villages. If you interviewed everyone living…

A: Given that there are 102 towns and villages.  We consider a population when we want each and every…

Q: for its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listenedto music…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Zach ,a Quality Process Engineer for Hershey Chocolates, pulled 16 random kisses from duction and…

A: For the given information, sample mean=0.1608=AVERAGE(E1:E16) sample standard…

Q: For its "Music 360" survey, Nielsen Co. asked teenagers and adults how each group has listened to…

A: Solution

Q: The top 40 qualified applicants for a scholarship are identified and 4 are selected at random to…

A:

Q: . Below are the number of hours spent by teache and 12 students were selected at random to there is…

A: Given, Excel output:

Q: There is money to send three of nine city council members to a conference in Honolulu. All want to…

A: Combination: The number of different selections of ‘r’ elements (order doesn’t matter) from a set of…

Q: There is money to send four of nine city council members to a conference in Honolulu. All want to…

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

Q: A survey found that 58% of American adults said they use the Internet. If 20 American adults are…

A: Answer - A survey found that 58%   i.e P = 0.58               n= 20,    x = 12

Q: According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of…

A: According to flightstats.com, American Airlines flights from Dallas to Chicago are on time 80% of…

Q: There is money to send four of seven student council members on a trip to Washington DC. All want to…

A: Given Information: Number of members = 7  Number of members to be send for trip = 4

Q: a study with 5 groups, 6 samples each group, what are the degrees of freedom for the total, group,…

A: Given: Number of groups (k) = 5 Number of samples each group (n)=6

Q: From a sack of fruit containing 3 oranges, 2 apples and 3 bananas, a random sample of 4 pieces of…

A: Given: n(oranges) = 3 n (apples) = 2 n (Bananas) = 3 n (total) = 3+2+3              = 8 n(drawn) = 4…

Q: In 2013, 46% of high school students tried a tobacco product. From a survey of 500 randomly…

A: Given : Population proportion =46% n=500

Q: A public opinion poll in Ohio wants to determine whether registered voters in the state approve of a…

A: A public opinion poll in Ohio wants to determine whether registered voters in the state approve of a…

Q: for its Music 360 survey, Nielsen Co. asked teenagers how they listened to music in the past 12…

A:

Q: From a group of 12 students, we want to select a random sample of 4 students to serve on a…

A: From the provided information, Total students in a group = 12 The different ways of selecting r…

Q: You are a professor of journalism and have 14 students in your class. How many ways can you line up…

A: Given,total no.of students=14

Q: A recent study suggested that 70% of all eligible voters will vote in the next presidential…

A: Solution: Let X be the number of eligible voters will vote in the next presidential election and n…

Q: From a group of 12 students, we want to select a random sample of 5 students to serve on a…

A: Given n=12 r=5

Q: A biology student wanted to determine if using fertilizer would promote plant growth. One hundred…

A: If we use he random assignment of the fertilizer, we have evenly distributed of two fertilizer…

Q: rom the U.S. Census Bureau’s American Community Survey in 2019 it was found that 33.13% of United…

A: Given: The proportion of residents over the age of 25 who had attained a bachelor’s degree or higher…

Q: Based on a sample survey, a company claims that 75% of their customers are satisfied with their…

A:

Q: At an investment bank, 75% of the clients have at least 1m in their account.Futhermore suppose that…

A: Let us denote: A= event that the client has at least 1m in his/her account B= event that the client…

Q: What percentage of the students surveyed are education majors or mathematics majors?

A: We have given that the sample size 200. P( education majors) = 16% = 0.16 P( mathematics majors ) =…

Q: Find the probability that a randomly selected group of four children will contain exactly three…

A: Given that  Success of probability p =1/2=0.5 Number of trials n=4 X~binomial ( n ,p)

Q: for its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listenedto music…

A: a. A random sample of 10 teenagers is selected and they are asked how they listen to music. It was…

Q: For its "music 360 "survey, nielsen co asked teenagers and adults how each group has listened to…

A: (a)   Determine whether the binomial setting can be applied or not.   The given experiment is…

Q: You read a newspaper article that describes a study of whether stress management can help reduce…

A: Introduction: It is of interest to know whether there is any difference among the three treatments-…

Q: The executives of an accounting firm plan to survey a random sample of clients to determine how…

A: Identify the correct option for the sample for the given data. The correct option is identified…

Q: list of the over 2300 Henry Clay high School is compiled. from that list 250 names are randomly…

A: Given Info: 250 students are randomly chosen to complete a survey.

Q: If you have a study in which 40 participants are randomly assigned to one of the four groups, the…

A: Given data,Number of participants N=40Number of groups       k=4 dfbetween =?

Q: For its “Music 360" survey, Nielsen Co. asked teenagers and adults how each group has listened to…

A: Given: n=10p=0.35

Q: Bradley Nixon is interested in the study habits of online math students.  As part of his study, he…

A: First need to understand about sample and population. Population: It is the set of all the possible…

Q: On a casual day it was found that 12% of the learners wore their favourite t-shirts. The remaining…

A:

Q: for its Music 360 survey, Nielsen Co. asked teenagers and adults how each group has listenedto music…

A: Given:  The probability that the U.S. teenagers under the age of 18 say they use google Inc.’s…

Q: At a football game, 40 fans were randomly surveyed. Of the sampled fans, 6 named Daren as the best…

A: given out of 40 fans, 6 fans  named Daren as the best player to find from 12000 fans how many say…

Q: hool newspaper reporter decides to randomly survey 17 students to see if they will attend Tet…

A: Given data, n=17 he knows that 11% of students attend Tet festivities.  p=11%=0.11 How many of the…

Q: To survey clients at a massage-therapy spa, a researcher alphabetically lists all of the customers…

A: Procedure used is that the researcher sends a survey to the 13th person on the list (with the number…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.