Q1. 40% of people who purchase sport cars are men. If 8 sports car owners are randomly selected, find the probability that exactly 5 are men.     Please I want answer for this question by typing it. Thanks

Q: In a survey of 131 people 115 expressed support for the governor. Find p hat and a hat where p hat…

A: Given data, n=131 x=115 p=?

Q: You must make a choice between 4 different brands. Based on the data in the table, which brand has…

A: Brand Breaks within 6 Months Total A 1250 12,400 B 1375 7500 C 450 1400 D 84 230

Q: Sixty-five percent of men consider themselves knowledgeable soccer fans. If 10 men are randomly…

A: Given  n=10, p=65%

Q: 2016, 48.3% of college students voted.  What is the probability of getting 40 or fewer students who…

A: Number of trail n=100Probability of success p=0.483

Q: A quick quiz consists of a multiple-choice question with 5 possible answers followed by a true/false…

A: Given dataMultiple choice questions with 5 possible answers followed by a true and false5 possible…

Q: a. 5 or 6 of them pay cash b. at most 1 pays cash

A: Given : Percentage of customers who pay cash for their purchases is 30% , p = 0.3 Sample size, n…

Q: The opera theater manager calculates that 32 % of the opera tickets for tonight's show have been…

A: Given: Sample size, n = 446 32% of the opera tickets for tonight's show have been sold Proportion =…

Q: Suppose that 50% of people own dogs. If you pick two people at random, what is the probability that…

A: The probability of having a dog by an individual is 50%, i.e., p = 0.50.

Q: eport the answer as a percent rounded to two decimal place accuracy. You need not enter the "%"…

A: Let us assume that one out of the four possible answers, is only correct for both questions…

Q: The probability that a student is awarded a pass in Engineering statistics is 0.75. Find the…

A: Solution: Let X be the number of students pass the statistics examination and n be the sample number…

Q: calculate the probability of exactly 3 successes in 4 tries. p= 0.2

A: Given:n = 4, r= 3, p = 0.2Consider that the random variable X follows a binomial distribution with…

Q: You select a card from the standard deck of cards.  What is the probability that you will select a…

A: In a deck of cards Face cards = Jack, queen and king Total face cards = 3 x 4 = 12 Number of 8 cards…

Q: 88% of adults are high school graduates.  If a random sample of 10 adults is chosen, find the…

A: p=0.88sample size(n)=10Let "x" no. of adults are graduatesx~Binomial(n=10,p=0.88)P(X=x)=

Q: A poll showed that 68.5% of Americans say they believe that Marilyn Monroe had an affair with JFK.…

A: Given information- Percentage of Americans believe that Marilyn Monroe had an affair with JFK =…

Q: 52% of dogs enjoy biting the mailman.  Select 5 random dogs.  Find the probability at least 1 enjoys…

A:

Q: In a recent survey, 303 out of 350 residents of Salem, MA said they are planning on passing candy…

A: here given ,  303 out of 350 residents of Salem, MA said they are planning on passing candy during…

Q: contains three red hats, two green hats and one orange hat. Eight hats will be drawn at random with…

A:

Q: A spinner is broken into sections labeled 1 to 49.  What is the probability that, on your next spin,…

A: We have to find given probability.

Q: A poll showed that 50.9% of Americans say they believe that some psychics can help solve murder…

A:

Q: probability of observing at least 30 heads in 100 tosses? . Try computing the answer for a smaller…

A:

Q: 18% of all Americans live in poverty. If 35 Americans are randomly selected, find the probability…

A: It is given that  p = 18% = 0.18 n = 35 X ~ Bin( 35, 0.18 )

Q: Your favorite basketball player is a 90% free throw shooter. Find the probability (as a percent)…

A:

Q: A student takes a true-false test but did not study and randomly guesses each answer. There are 20…

A:

Q: Ahmed hits 56 % of his free throws in the Basket Ball game. He had 8 free throws in last week game.…

A:

Q: Intel's microprocessors have a 1.8% chance of malfunctioning.  Determine the probability that a…

A: Given  Chances of malfunctioning of Intel's microprocessors  = 1.8% = 0.018

Q: study indicates that 29% of singles have have tried online dating. You randomly sample 9 singles.…

A: Let X be the random variable from binomial distribution with probability (p) = 29% = 0.29 and sample…

Q: At The Fencing Center, 60% of the fencers use the foil as their main weapon. We randomly survey 27…

A: We have given that      60% of the fencers use the foil as their main weapon.   and 40% of the…

Q: A geneticist conducts an experiment with beans, one sample of offspring consisted of 476 green beans…

A: Solution-: Given: Number of green beans =476            Number of yellow beans =165 We want to find…

Q: A blood test for diabetes gives a positive result with a proportion of 0.48 when an individual has…

A: The events are denoted as follows:: Event that an individual has diabetes.: Event that an…

Q: In a brand recognition study, 806 consumers knew of Starbucks, and 19 did not. Use these results to…

A: The question is based on a probability Given : No. of consumers who knew S = 806 No. of consumers…

Q: A poll showed that 45.2% of Americans say they believe that Marilyn Monroe had an affair with JFK.…

A: Given, Marilyn Monroe had an affair with JFK= 45.2% Probability that randomly selected individual…

Q: A quick quiz consists of a true/false question followed by a multiple-choice question with 6…

A:

Q: 65% of the people in Missouri pass the driver's test on the first attempt. A group of 7 people took…

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

Q: Imagine you have a bag containing 5 red, 3 blue and 2 orange chips. If drawing without replacement,…

A: Given,Number of red chips, n(red) = 5Number of blue chips, n(blue) = 3Number of orange chips,…

Q: If the probability that a randomly chosen college student takes statistics is 0.75, then what is the…

A: Given, Let A be the event that randomly chosen college student takes statistics. p(A)=0.75

Q: The probability of having a child that is left handed is10%. If three children are randomlyselected,…

A: From the given information we want to find the probability that at least one child is left handed.

Continuous Probability Distributions

Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.

Normal Distribution

Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!