Assume that random guesses are made for 88 ​multiple-choice questions on a test with 22 choices for each​ question, so that there are nequals=88 ​trials, each with probability of success​ (correct) given by pequals=0.500.50. Find the probability of no correct answers.

Q: Find the probability a randomly selected z-score is more than -1.31. Round your result to 4 decim.…

A: Probability that a randomly selected z score is more than -1.31  P(Z>-1.31)  The normal…

Q: Assume that guesses are made for 5 questions on a medical admissions test such that the probability…

A: Given: Probability of correct answer (p) = 0.40 Number of questions (n) = 5 Consider, X be the…

Q: suppose that 64% of people own dogs. If you pick two people at random, what is the probability that…

A: Solution: Given information: Let A be the event that people having own dog P(A)= 0.64

Q: Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes,…

A: Givenp=0.45n=15x~Binomial(n=15,p=0.45)P(X=x)=(nx)×px×(1-p)n-x    ; x=0,1,...,n

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

A: Let X be the number of adults use their smartphones in meeting or classes which follows binomial…

Q: Assume that when adults with smartphones are randomly selected, 62% use them in meetings or classes.…

A: From the provided information, 62% of the adults uses smartphones in meeting or classes that is p =…

Q: Assume that when adults with smartphones are randomly selected, 55% use them in meetings or classes.…

A: Solution: Let X be the random  variable that the number of adults with smartphone use them in…

Q: µ±30

A: The average 1 person in 1000 makes a mistake for 10000 forms 10 will be an average numerical error.…

Q: A positive integer not greater than 1000 is randomly selected. What is the probability of the…

A:

Q: Suppose that in a particular country, the probability that a randomly chosen person is a left-handed…

A: Given,P(left handed∩baseball player)=0.014Pleft-handed|baseball player=0.250

Q: Suppose that n people, enumerated as 1, 2, · · · , n, sit randomly around a circular table. What is…

A: When no attention is given to the order of arrangement of selected objects, we get a combination.…

Q: The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.988…

A: It is given that the probability of a randomly selected 40 years old female will live to be 41 years…

Q: Assume that random guesses are made for 2 multiple-choice questions on a test with 5 choices for…

A: Introduction:If X ~ Bin (n, p), then the probability mass function of X is:p (x) = (nCx) px (1 – p)n…

Q: Suppose that 38% of people own dogs. If you pick two people at random, what is the probability that…

A: Given that, Probability, p = 38% = 0.38 Sample size = 2

Q: Assume that 4 digits are selected at random from the set {1,2,3,5,8} and are arranged in random…

A: To compute the probability of the required event from the basic counting principles

Q: Assume that random guesses are made for 5 ​multiple-choice questions on a test with 5 choices for…

A: Given Information: number of questions, n = 5 Probability of sucess for each questions, p = 0.20 To…

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

A: Given Information: p = 44% = 0.44 n = 7 To find the probability that exactly 3 of them use their…

Q: Assume that when adults with smartphones are randomly selected, 41% use them in meetings or classes.…

A: Given

Q: Suppose that 46% of people own dogs. If you pick two people at random, what is the probability that…

A:

Q: Assume that when adults with smartphones are randomly selected, 41% use them in meetings or classes.…

A: Given: About 41% of adults use their smartphones in meetings or classes. 15 smartphone users are…

Q: Assume that when adults with smartphones are randomly selected, 52% use them in meetings or classes.…

A:

Q: Assume that random guesses are 7 mutiple-choice questions on a test with 5 choices for each…

A:

Q: Assume that random guesses are made for 7 ​multiple-choice questions on a test with 5 choices for…

A: Obtain the probability of no correct answers. The probability of no correct answers is obtained…

Q: Assume that guesses are made for 2 questions on a medical admissions test such that the probability…

A: Here, n = 2 and p = 0.80.

Q: Assume that when adults with smartphones are randomly​ selected, 53​% use them in meetings or…

A:

Q: Assume that when adults with smartphones are randomly selected, 64% use them in meetings or classes.…

A: Given, sample size = n = 8 Probability = p = 64% = 0.64 Number of smartphones users use their…

Q: Assume that when adults with smartphones are randomly​ selected, 42​% use them in meetings or…

A: Here, theoretically, if we consider using of smartphones during meetings or classes, when selected…

Q: Ten peas are generated from parents having the green/yellow pair of genes, so there is a 0.75…

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials,…

Q: Assume that when adults with smartphones are randomly selected, 46% use them in meetings or classes.…

A: Givenno.of people uses them in meaatings(p)=0.46sample…

Q: The probability that a randomly selected 40-year-old female will live to be 41 years old is 0.988…

A:

Q: Assume that when adults with smartphones are randomly selected, 51% use them in meetings or classes.…

A: Assume, X denotes the random variable representing the number of users who use their phones in…

Q: Assume that random guesses are made for 12 multiple choice questions on an SAT test, each with…

A:

Q: 1000 independent rolls of a fair die will be made. Given that the number 4 appears exactly 128 times…

A:

Q: Assume that random guesses are made for 8 ​multiple-choice questions on a test with 2 choices for…

A: GivenTotal number of questions = n = 8Total number of options = 2P(correct answer) = 0.5 Let X be…

Q: Assume that when adults with smartphones are randomly​ selected, 64​% use them in meetings or…

A: X~B9,0.64PX=x=ncxpxqn-x

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

A:

Q: Assume that when adults with smartphones are randomly selected, 59% use them in meetings of are…

A: Given Information: 59% of adults use smartphones in meetings or or classes i.e., p=0.59 Sample size…

Q: In a certain region, the probability of selecting an adult over 40 years of age with a certain…

A: Let a denotes an adult over 40 years of age with a certain disease. The probability is 0.04. That…

Q: Assume that when adults with smartphones are randomly selected, 63% use them in meetings or classes.…

A: According to the given information, we have 63% use them in meetings or classes. Sample size, n = 8

Q: The Agency for Healthcare Research and Quality reported that 53% of people who had coronary bypass…

A:

Q: On average, 12 balls enters the room every minute. What is the probability that the 4th ball seconds…

A: Poisson distribution: A random variable X is said to have a Poisson distribution with a parameter λ…

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

A:

Q: Assume that when adults with smartphones are randomly​ selected 36% use them in meetings or classes.…

A: Probability that adults use smart phones in meeting or classes (p) = 36% = 0.36 Number of adults…

Q: Assume that when adults with smartphones are randomly selected, 45% use them in meetings or classes.…

A: Introduction: If X ~ Binomial (n, p), then the probability mass function of X is: Here, n is…

Q: Assume that when adults with smartphones are randomly​ selected, 57​% use them in meetings or…

A: Probability that adults use their smartphones in meetings or classes is , p = 57% = 0.57 Sample…

Q: The probability that Mr. Johnson goes for an evening walk on any given day during the winter is…

A: Formula : E(X) = np'

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

A: We have given that  Sample size n = 7 Success of probability is = 0.56 X~binomial ( n , p)

Q: Assume that when adults with smartphones are randomly selected , 61% use them in meetings or…

A: From the given information, The percentage of smartphones in meetings or classes is 61% and there…

Q: Suppose a basketball player is an excellent free throw shooter and makes 88% of her free throws…

A: Given that the probability of making a free throw is= 88%= 0.88 Each free throw shots are…

Q: Assume that when adults with smartphones are randomly​ selected,47​% use them in meetings or…

A:

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.