Suppose that 80% of American homes have a microwave oven. Let X be the number of American homes in a random sample of n=20 that have a microwave oven. Find the probability that X is at most 18 and at least 16.

Q: Assume that 15​% of people are​ left-handed. Suppose 12 people are selected at random. What's the…

A: Solution

Q: Suppose that 15% of the population is left-handed. Find the probability that in group of 50…

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

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Q: Assume that when adults with smartphones are randomly​ selected, 48​% use them in meetings or…

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

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

A: Let X be the adults with smartphone X~B(n=10, p=0.51) P(X>=5)= ?

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

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Q: Twenty percent of all undergraduates at a university are chemistry majors. In a random sample of…

A: Given information:Population proportion (p) = 20%                                         p =…

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

A: Let p = probability of success, implies p = probability individual uses smartphone in meetings or…

Q: Suppose a math class contains 31 students, 19 females (two of whom speak French) and 12 males (three…

A: We have given that a math class contain 31 students, 19 females( 2 speaks French) and 12 males(3…

Q: Suppose a math class contains 47 students, 24 females (four of whom speak French) and 23 males (six…

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Q: 63% of all Americans are home owners. If 35 Americans are randomly selected, find the probability…

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

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

Q: 58% of all violent felons in the prison system are repeat offenders. If 43 violent felons are…

A: Here Normal approximation to binomial dist. is applicable  as np and nq are greater than 10

Q: Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes.…

A: Given,n=6p=0.54q=1-p=1-0.54=0.46X=No.of adults use their smartphones in meetingsor…

Q: It is determined that 62% percent of Grade 12s attend school in a particular urban school district.…

A: Given : n = 500 p = 0.62 q = 1 - p  q = 1-0.62 q = 0.38 Here n×p and n×q is greater than 5. hence we…

Q: Scoring a hole-in-one is the greatest shot a golfer can make. Once 55 professional golfers each made…

A: Given, Probability of success=p=1/2856 n=55

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

A: Given: Number of samples (n) = 20 Probability of success (p) = 0.57 Probabilty of failure (q) = 1-p…

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

A: Given data Probability that adult with smartphones will use them in meetings  = 0.47 Number of…

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

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Q: Assume  that  20%  of the adult  population  in  a  given  province has a  college  degree, and…

A: The objective of this question is to find the probability that more than 350 people in a sample of…

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

A: We have to  find the probability that at least 6 of them use their smartphones in meetings or…

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

A: Let "X" be the adults who use their smartphones in meetings or classes.

Q: Suppose a math class contains 42 students, 18 females (six of whom speak French) and 24 males (four…

A: given that , total students =42 , female students = 18, male students = 24. Female students who can…

Q: Suppose that we know that 33.8% of the people born in the United Sates between 1936 and 1951 have…

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Q: Assume that a survey of 200 randomly selected people showed that 105 will vote in the 2020 General…

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Q: Assume that when adults with smartphones are randomly​ selected, 35​% use them in meetings or…

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

A: Given that, When adults with smartphones are randomly​ selected, 55​% use them in meetings or…

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.