A tour guide is in charge of overseeing groups of 3 visitors during the trip. There is a probability of 2/3 that a visitor in the group will ask the tour guide a question. The tour guide has been asked by the bus driver to make a hypothesis about the number of questions the next group will ask. 1. Write the table and formula (if any) of the probability mass function for the number of questions asked by the group of 3. 2. How many questions should the tour guide expect, and what is the standard deviation?

Q: 60% of all students at a college still need to take another math class. If 4 students are randomly…

A: Givenp=0.60n=4x~Binomial(n=4,p=0.60)P(X=x)=(nx)×px×(1-p)n-x ; x=0,1...,n

Q: The data represents the results for a test for a certain disease. Assume one individual from the…

A:

Q: The table lists the drinking habits of getting someone who is a man or a non-drinker. Round your…

A: Given  Information Sex Non- Drinker Regular drinker Heavy drinker Total Man 135 56 5 196…

Q: After giving an exam to a group of students, the grades and gender are summarized below. Grades vs.…

A: The contingency table is given as follows:   A B C Row Total Male 6 11 4 21…

Q: In an election, suppose that 35% of voters support creating a new fire district. If we poll 169 of…

A: given data  n = 169 p = 0.35 fill blanks in distribution given

Q: What is the probability of rolling one six sided die and obtaining a 1 and a 2 in consecutive rolls?

A: The sample space for rolling a one six sided die is S = { 1, 2, 3, 4, 5, 6 }.

Q: A die is weighted in such a way that each of 1 and 2 is eight times as likely to come up as each of…

A: a)  P(3) = x P(4) = P(5) = P(6) = x P(1) = P(2) = 8x

Q: Please help find the correct awnser for these questions, one is written down and one is in picture…

A: As given, the following table shows a probability model for the results from her next two games.…

Q: Two cards are selected from a standard deck of 52 playing cards. The first card is not replaced…

A: Total Cards in deck = 52 Number of club in the deck = 13 Number of spade in the deck= 13 Probability…

Q: A financial services committee had 60 members, of which 10 were women. If 9 members are selected at…

A: a. The probability that 7 men and 2 women are selected is 0.3041 and it is obtained below: From the…

Q: students. The grades and gender are summarized below   A B C Total Male 11 8 14 33 Female 19 13 10…

A:

Q: Find the probability that a boy prefers Fruity cereal. A. 500/1,000B. 500/2,000C. 1,200/2,000D.…

A: The objective of this question is to find the probability that a boy prefers Fruity cereal.…

Q: At Burger King, a soda machine dispenses Pepsi in a uniform distribution.  The machine dispenses…

A:

Q: The table gives the proportion of adults in a certain country in each age group, as well as the…

A: To determine the probability that a randomly selected adult who smokes falls within the 18-24 age…

Q: A class consists of 70 women and 20 men. If a student is randomly selected, what is the probability…

A: Given A class consists of 70 women and 20 men. Here, a student is random selected. Total Number of…

Q: A local county has an unemployment rate of 6.5%. A random sample of 17 employable people are picked…

A: Proportion that local county has a unemployment rate(p)=0.065sample size(n)=17

Q: 30% of all college students major in STEM (Science, Technology, Engineering, and Math). Round your…

A: answer By using given data,

Q: Exactly 2 of them need to take another math class.  b. At most 2 of them need to take another math…

A: Given that  n = 5 , p = 71% = 0.71 , q = 1 - p = 1 - 0.71 = 0.29 X ~ Binomial (n = 5 , p = 0.71) X:…

Q: Match each term with the correct description. a.experimental probability b.theoretical probability…

A: Given problem is : Match each term with the correct description. a. experimental probability b.…

Q: One household is to be selected at random from a town.

A: One household is to be selected at random from a town.   The probability that the household has a…

Q: What is the probability a consumer lives within 10 miles of the nearest grocery store and shops at a…

A: We are given the number of people that shops online for groceries. We need to find the probability…

Q: Suppose that you are looking for a student at your college who lives within five miles of you. You…

A: Given data, n=248 p=40%=0.40 q=1-p=0.60   The probability mass function of geometric distribution to…

Q: The next 10 questions refer to the following scenario: A survey of 100 people revealed that 30 smoke…

A: Total number of people in the survey is 100.Number of people who smoke regularly is S=30.Number of…

Q: 63% of all Americans are home owners. 37 Americans are randomly selected, find the probability that…

A: given data P(home owner) = p =0.63no. of trials = n = 37x = no. of home owners in sample

Q: A die is weighted in such a way that each of 1 and 2 is eight times as likely to come up as each of…

A: Answer:-  We are given, P(3)=x Since, the probability of the outcome being 4,5 or 6 is same as that…

Q: 62% of all Americans are home owners. If 44 Americans are randomly selected, find the probability…

A: Given  Sample size n=44, p=probability of all Americans are home owners  According to Bartleby…

Q: Given the following information summarizing a survey given to people at a local dog park weighing…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: In a brand recognition study, 996 consumers knew of Coke, and 39 did not. Use these result estimate…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: Answer the following questions in a separate sheet of paper then send a picture of your answer 1.…

A: Comment: As per the our company guidelines we are supposed to answer only one question. Kindly…

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: Given :   Restaurant     A B C D Total Order Accurate 335 260 231 141 967 Order Not…

Q: Find the probability that a person selected has blond hair if it is known that the person has green…

A: HERE USE ,  given table and Baye's rule  here total persons in given table is 500

Q: Based on a​ poll, among adults who regret getting​ tattoos, 17% say that they were too young when…

A: Let X is the random variable representing the number of adults who regret getting​ tattoos. Given:…

Q: The table lists the smoking habits of a group of college students. Sex Non-smoker Regular Smoker…

A: Given,   P(Man or non-smoker)=?

Q: 56% of all Americans are home owners. If 45 Americans are randomly selected, find the probability…

A: I will use excel to solve this question.…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.