Suppose that the management of a pizza restaurant chain stated that 80 % of their customers returned for another meal while 20 % did not.In a particular week,90 customers dined at this pizza chains restaurants. (a) What is the probability that 74 or more will return ? (b) What is the probability that between 50 and 70 diners will return for another meal ? (c) What is the # of returning diners that would be in the top 12 % of all diners ?

Q: 40% of the managers in an international company have traveled abroad, 50% of them can speak foreign…

A: Let event T:Manager travelled abroad event F:Manager can speak foreign language. PT=0.4 therefore…

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if four…

A: Let X represent the random variable   n=4 p=0.14   X~ Binomial (4, 0.14)

Q: In a sample of 1000 U.S adults, 199 think that most celebrities are good role models. Two U.S adults…

A:

Q: A survey shows that about 65% of all respondents chose to have dogs over cats. Suppose that 15…

A:

Q: A survey showed that 50% of customers like Toyota cars, 40% customers like Nissan cars, and 70% like…

A: A survey showed that 50% of customers like Toyota cars, P(toyota) = 0.5 40% customers like Nissan…

Q: A familys dog is pregnant with 4 puppies. If the probability each puppy will be yellow like the…

A: From the provided information, A family dog is pregnant with 4 puppies that is n = 4 Probability…

Q: If a seed is planted, it has a 75% chance of growing into a healthy plant.If 12 seeds are planted,…

A: The objective of this question is to find the probability that exactly 2 out of 12 seeds do not grow…

Q: If a seed is planted, it has a 85% chance of growing into a healthy plant. If 7 seeds are planted,…

A:

Q: If a seed is planted, it has a 70% chance of growing into a healthy plant.

A: Given that the 70% chance of growing into a healthy plant. P(growing a plant)=0.70 P(not…

Q: If approximately 2% of the people in a room of 300 people are left-handed, find the probability that…

A:

Q: If a seed is planted, it has a 90% chance of growing into a healthy plant. If 12 seeds are planted,…

A: Given that if a seed is planted, the chance of growing into a healthy plant is 90%.

Q: f a seed is planted, it has a 75% chance of growing into a healthy plant. If 12 seeds are planted,…

A: Probability of growing  into a healthy plant when a seed is planted=0.75Sample size(n)=12

Q: If 15% of students like tennis and I expect 500 new students on campus what is the probability that…

A: Probability that students like tennis, p=15% = 0.15 q=1-p= 1-0.15= 0.85 Sample size n=500…

Q: In a survey, 205 people indicated they prefer cats, 160 indicated they prefer dogs, and 40 indicated…

A: From the provided information, 205 people indicated they prefer cats, 160 indicated they prefer…

Q: Out of 176 students surveyed at a sporting event, half were males and athletes. 120 students…

A:

Q: If 42% of students own a car and 27% of students own a bike. What is the probability that a student…

A: Given Data: The probability that student own a car is: P(A)=42% The probability that student own a…

Q: Express the confidence interval(0.026,0.088)in the form of p−E<p<p+E.

A: Solution: From the given information, the confidence interval for the population proportion is…

Q: If the probability of being hit by lightning is 1 in 1,000,000, what is the probability of not…

A: Given that , P (being hit by lightning) = 1/1000000 =0.000001

Q: What is the probability of having 3 boys given the oldest is a boy?

A: The theory of probability has its origin in the seventeenth century. The king of France who…

Q: Nasa needs to select a 7 person crew for a space mission from 43 applicants of whom are 21 women.…

A: Given data: the total numbers of applicants are n=43. The numbers of persons selected for space…

Q: If a seed is planted, it has a 95% chance of growing into a healthy plant. If 7 seeds are planted,…

A: The probability that the plant doesn't grow into a healthy plant (p) .

Q: The probability that a newly matriculated student will not get to the second year of their studies…

A:

Q: Q.NO.1: a) For the following calculate mean deviation using median. Height No. of Boys 55 56 57 58…

A: a) Given: n=150 X F Cumulative frequency 55 25 25 56 40 65 57 50 115 58 20 135 59 10…

Q: If the probability of being hospitalized during a year is 0.25. Find the probability that no one is…

A: X has binomial distribution. X~binomial(n,p)n=3p=0.25probability mass function of X;…

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

A: Solution

Q: If 2 random students were selected (with replacement), what is the probability that both have the…

A: The total number of students is 476. The number of students who plans for job, travel, and volunteer…

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if three…

A:

Q: For next year, 47% of veterans will buy a single family home. If we pick a random sample of 5…

A: Given Information: n = 5 p = 47% = 0.47 To find out the probability that at least 4 veterans will…

Q: There are 400 seniors in highschool, of which 180 are males. It is known that 85% of the males and…

A: Given,

Q: Suppose on a CD, you like 10 out of 13 songs. If you randomly select four songs to be played once,…

A:

Q: A researcher is conducting an experimental study on the effect of aspirin on heart attack risk. In…

A: In cluster we divide the data in different groups.