Two dice are rolled a total of eight times, and the sum is recorded each time. a) Show the probability distribution for a sum of 7. b) Make a probability histogram of the distribution. c) Determine and interpret the expected outcome.

Q: A single fair die Is rolled 10 times. Find the probability distribution of the random variable…

A:

Q: The accompanying table shows the results of a survey in which 250 male and 250 female workers ages…

A:

Q: According to the National Center for Education Statistics, 17% of all people in the United States,…

A:

Q: a fair six sided die is rolled 10 times.each is independent.you want to find probability of finding…

A: Let the random variable X denotes the number of times a fair six-sided die is rolled. The number of…

Q: Assume that when adults with smartphones are randomly​ selected, 44​% use them in meetings or…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment.…

Q: a. Find the probability of getting exactly 4 sleepwalkers among 5 adults. (Type an integer or a…

A: Defined :

Q: (a) Find the probability that a randomly selected worker contributes to a retirement savings plan at…

A: Given that    Contribute  Do not Contribute  Total Male 130 120 250 Female  139 111 250…

Q: The average number of Toyota Fortuner cars that you can see on your drive to work is 21, What is the…

A: The average no.of Toyota fortuner cars =21

Q: Calculate the probability of rolling at least one “5” after 6 rolls: a. Use the relative frequency…

A: In the given situation, dice is rolled 6 times. Total number of outcomes is 6^6=46656 Among 46656…

Q: The accompanying table shows the results of a survey in which 250 male and 250 female workers ages…

A: Given :   contribute Do not contribute Total male 127 123 250 Female 142 108 250 Total…

Q: Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when…

A: Solution: Let X be the number of adults say that they were too young when they got their tattoos and…

Q: The probability that an adult possesses a credit card is .58. A researcher selects three adults at…

A:

Q: The average number of Presta value sold in a month at Pete’s bike shop is 8. What is the probability…

A: We have given that Mean=λ=8 X~Poisson(λ=8)

Q: Suppose you calculate a 99% confidence interval to be: 13.05 to 20.75. Determine the margin of error

A: Given data: The given upper limit is b=20.75. The given lower limit is a=13.05.   The expression for…

Q: Construct the probability distribution and probability histogram: a.) Two coins are tossed. Let Z…

A: Two coins are thrown independently  Sample space ={HH,HT,TH,TT}  Let x be the no oof tails ={0,1,2}…

Q: According to a health​ publication, 12.8​% of persons under the age of 65 have no health insurance…

A: a. The binomial probability distribution is, PX=x=nxpx1-pn-x In the formula, n denotes the number of…

Q: 4632673 flights arrived in Dubai’s airport last year. 43135 from them arrived from Europe. Estimate…

A: Given, 4632673 flights arrived in Dubai’s airport last year. 43135 from them arrived from Europe.…

Q: Approximately 42% of people who purchased beer bought it specifically for consumption during a…

A: From the given information we find the probability that no more than two people brought two beer .

Q: 16 of the 200 digital video recorders​ (DVRs) in an inventory are known to be defective. What is the…

A: Given that, 16 of the 200 digital video recorders​  (DVRs) in an inventory are known to be…

Q: The probability 99% of ChatBot message send to customer are correct. If a sample of 100 massages is…

A:

Q: The accompanying table shows the results of a survey in which 250 male and 250 female workers ages…

A: Given data is

Q: The mean number of defective units in a large assembly line is 4.3 units per day . Find the…

A: It is given that, The mean number of defective units in a large assembly line is 4.3 units per day.…

Q: Find the indicated probability. Round to three decimal places. 33% of the computer science majors…

A: Givenp=0.33sample size(n)=10x~Binomial(n=10 , p=0.33)P(X=x)=(nx)×px×(1-p)n-x    ; x=0,1,...,n

Q: The mean number of customers arriving at a restaurant during a 15-minutes period is 12. Find the…

A: We have to find out given probability...

Q: me accompanying table shows the results of a survey in which 250 male and 250 female workers ages 25…

A:

Q: Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when…

A: Givenp=0.23n=10x~Binomial(n=10,p=0.23)P(X=x)=(nx)×px×(1-p)n-x     ; x=0,1,...,n

Q: The mean customer aarival for a book store in a day is 8. What is the probability that on a given…

A: We have givenλ = 8X ~ Poisson (λ = 8)Formula: P(X = x ) = (e-λλx)/x!

Q: The probability distribution of a random variable is: A) the degree to which the variable’s…

A: Before exploring each given option, let's first discuss "probability" and "random variable". "The…

Q: Assume that when adults with smartphones are randomly​ selected, 56​% use them in meetings or…

A: Binomial distribution describes the possible number of events occurs in fixed number of trials.…

Q: Suppose a coin and a die are tossed. Let X be the random variable representing an even number.…

A: Here the coin and die are tossing simultaneously. Here the sample space , S = {(1,H) , (1,T) , (2,H)…

Q: e accompanying data are the number of wins and the earned run averages (mean number of earned runs…

A: Given data is :

Q: Based on a poll , among adults who regret getting tattoos , 30 % say that the too young when they…

A: Given, p=30% = 0.3 n=5 q=1-p=1-0.3=0.7

Q: The percentages of weapons used in murders in a certain year are described in the pie chart.…

A: Ans A and B:

Q: What is the probability they were correctly matched?

A: Thirteen of your graduation gift thank-you note/envelope pairs were randomly matched withoutchecking…

Q: A dormitory on campus houses 100 students. 42 are male, and 40% are KINE majors. A student is…

A:

Q: Assume that when adults with smartphones are randomly​ selected, 43​% use them in meetings or…

A: Solution: Let X be the random variable that  adults uses smartphones in meetings or classes. The…

Q: Assume that when adults with smartphones are randomly​ selected, 39​% use them in meetings or…

A: Define the random variable x as the number of adults using smartphones in meetings or classes. Here,…

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.