It is known the 60% of toddlers have too much screen time. A randome sample of 8 toddlers were examined. What is the probability that 4 have too much screen time?

Q: Sixteen of the 200 digital video recorders in an inventory are known to be defective. What is the…

A: It is given that, 16 of the 200 digital video recorders in an inventory are known to be defective.

Q: What is the probability that a random variable will have values of three or less?

A: Given that  Probability mass function  X 0 1 2 3 4 5 6 7 8 9 10 P(x) 0.06 0.14 0.16 0.14 0.12…

Q: considered equally likely, what is the probability that men took the top 4 ranks.

A: here given there are 6 women and 4 men in class of engineering data analysis  and given that there…

Q: Catherine Chao, director of marketing research, needs a sample of Kansas city households to…

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Q: It has been estimated that 21% of Americans are smokers. If five American adults are chosen at…

A: From the provided information, It has been estimated that 21% of Americans are smokers that is p =…

Q: GreenFacts, a non-profit organization,reports that the average adult in Europe consumed 17 litres of…

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Q: An economics professional body estimates that 75% of the students taking undergraduate economics…

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Q: what is the probability that at least 1 defective card is in the sample?

A: Let , X has hypergeometric distribution with parameter N=120 , M=15 and n=15 The probability mass…

Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…

A: Given that, 40% of adult Australian sheep dogs weigh 65 pounds or more. Sample size = 18

Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…

A: Binomial distribution :  If X follows Binomial distribution with number of independent trial n and…

Q: According to the Internal Revenue Service, 75% of all tax returns lead to a refund. A random sample…

A: From the provided information, 75% of all tax returns lead to a refund that is p = 0.75 Sample size…

Q: In a Toyota factory, 137 out of 129,000 cars have faulty brakes. If 50 cars checked at random, what…

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Q: What is the probability that an 18-year old man selected at random is between 67 and 69 inches tall?

A: Let X denote the heights of  18 year-old men. Given that X follows N(mean = 68, SD = 3) Then Z = (X…

Q: d. What is the probability that more than 5 paint defective SUVS are produced?

A: Here Given  Proportion of Defective BMW =0.002=p And Total BMW produced =1000=n So Here  Production…

Q: Ms. Kim orders a pizza with 5 toppings, chosen from 11 available toppings. What is the probability…

A: Let A and B be the two events, the probability of event A or B but not both is nothing but P(A and…

Q: thirteen percent of adults are left handed. in a group of 30 adults, what is the probability of…

A: Let X=the number of lefty n=number of trials= 30 p=probability of success= 13%=0.13 X follows a…

Q: According to the American Veterinary Medical Association, 31.6% of American households own a dog.…

A: Let A denote that American households own a dog Let  denote that American households does not own a…

Q: What is the probability that out of 12 students on a swim team, they will line up from youngest to…

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Q: A poll showed that 50% of Americans say they believe that life exists elsewhere in the galaxy. What…

A: here given , A poll showed that 50% of Americans say they believe that life exists elsewhere in the…

Q: According to the Cable and Telecomm. Association for Marketing, 30% of cable television subscribers…

A: Given : n = 15 p = 0.30 Let X be the number of cable television subscribers.

Q: According to a 2018 survey, 74 percent of employed young adults expect to bring work on a vacation…

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Q: A four colour equal segment spinner was spun 14 times. What is the probability of spinning Yellow…

A: We have given that A four colour equal segment spinner was spun 14 times. Probability of each colour…

Q: What is the probability of rolling at least a 8 with a single toss of two dice?

A: Each die has 6 possible outcomes.  So, for 2 dice there are 62=36 outcomes.

Q: The centers for disease control reported that 16% of college aged individuals used vapes in…

A: Given information Probability of using vapes = 0.16 No of individuals n = 750 Probability that less…

Q: Just before a referendum on a school​ budget, a local newspaper polls 357 voters to predict whether…

A: Given, n = 357 p = 53% = 0.53

Q: According to a study conducted by the Gallup organization, the proportion of Americans who are…

A: It is an importance stance in probability distribution . Binomial distribution is a discrete…

Q: What is the probability that the car lot will sell at least 18 cars? What is the probability that a…

A: 68-95-99.7-rule: Let X be an observation from a normal distribution, having mean µ and standard…

Q: What is the probability that the consumer is 18-24 years of age, given that they dislike…

A: To find the required probabilities, we will use the following facts P(A | B) = P(A and B)/P(B) P(A…

Q: What is the probability of choosing a candy that is made with white chocolate and caramel?

A: Assuming the box has 8x chocolates White chocolates will be 4x Milk chocolates will be 4x

Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…

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Q: What is the probability of selecting a student whose favorite sport is skiing? What is the…

A: Note : According to our guidelines we are solving only first three sub-parts of a question and the…

Q: What is the probability of having 4 boys given the oldest is a boy?

A: Solution

Q: A nylon connector manufacturing plant yields 15 % defective items. If 1000 connectors are randomly…

A: Here, n = 1000, p = 0.15.

Q: What is the probability that a randomly chosen senior will have a GPA greater than 4.1? The…

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Q: Just before a referendum on a school​ budget, a local newspaper polls 424 voters to predict whether…

A: It is given that ,just before a referendum on a school​ budget, a local newspaper polls 424 voters…

Q: An economics professional body estimates that 80% of the students taking undergraduate economics…

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Q: It is known that 19% of people ride public transport without paying for it. We talk to 82 people who…

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Q: What is the probability that a randomly selected song had 501-1,000 plays and was rock?

A: The row totals and column totals are given in the following table:

Q: What is the probability that a randomly selected participant tasted apples and preferred…

A: Followings are the Explanation of the question 1) Probability is ratio of Number of favorable cases…

Q: What is the probability that a randomly selected bottle is correctly placed AND is a Plastic #4…

A: Probability is defined as the ratio of possible outcomes in a particular event to the total number…

Q: A nylon connector manufacturing plant yields 14 % defective items. If 1000 connectors are randomly…

A: It is given that p = 0.14 and n =1,000.

Q: An unbiased fair coin was tossed 15 times. What is the probability of getting exactly 8 heads?

A: We have given the following statement coin tossed 15 times.  We have to find probability of getting…

Q: It is estimated that​ 20% of luxury cars manufactured in 2012 were silver. A car dealership…

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Q: A recent study shows that 4% of California residents consider purchasing an electric car . If we…

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Q: What is the probability of randomly selecting a female respondent from the sample?

A: Given contingency table is:   Probability = number of favorable events/ Total number of events in…

Q: A market research organization surveyed 102 people and found that 73 of them would like more…

A: GivenThe total number of people the market research organization surveyed = 102 The total number of…

Q: A Gallup poll found that 73.2% of people in the US believe in hell. What is the probability that a…

A: Given that  A Gallup poll found that 73.2% of people in the US believe in hell  P(Believe in hell) =…

Q: what is the probability that the number of defectives exceeds 170?

A: Given: Sample size (N) = 1000 Number of favorable cases (x) = 170 Population proportion (p0) = 15% =…

Q: c.What is the probability that an executive has not traveled internationally? d. If we had a random…

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Q: It is believed that 42% of American cell phone users have some version of an iPhone. If a random…

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