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: Suppose that 75% of people in a certain metropolitan area live in the city and 25% of the people…

A:

Q: If the probability That a randomly selected murder resulted from a rifle or shotgun is 0.061 then if…

A: From the provided information,The probability that a randomly selected murder resulted from a rifle…

Q: Suppose 20% of the students in UCR commute to school every day. Among those who commute, 40% of them…

A: The objective of this question is to find the probability that a randomly selected student from UCR…

Q: What is the probability that a randomly selected student from the course will fail? If a student…

A: Define the following events:   A: students are light studiers B: students are moderate or heavy…

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

A:

Q: A recent poll of 300 executives' exercise habits revealed that 95 run and 127 bike.  49 reported…

A: P(A or B) = P(A) + P(B) - P(A and B)  Probability = favorable/total

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

A:

Q: In a horse race, give that the proportion of first class horses in each race was 5% and the…

A: Given Proportion of first-class horses in each race was 5% Prob. for a first-class horse to win the…

Q: Imagine that the probability that a random person will receive a phone call during this exam is…

A: Let A be the event that a person will receive a phone call during the exam, its probability is given…

Q: If probability of a single birth resulting in a boy is 0.435, then what is the probability of it…

A: Given that the probability of a single birth resulting in a boy is 0.435. Than we have to find the…

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: 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: 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: In 2021, 500 teachers in GCPS were surveyed. 230 teachers surveyed were Science teachers, 200…

A: Given: N=500 N(S)= 230 N(M)=200  Half of the teachers teaching Math also teach a science subject.…

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

A:

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: the probability an airplane arrives on time 80% of the time.Out of ten flights, what is the…

A: Given that  Probability an airplane arrives on time is 80%   P =0.80 (1-P) = 1-0.80 = 0.20 Sample…

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: a random card is drawn from a standard deck of playing cards (52 cards), what is the probability of…

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: A mortgage advisor sells on average 3.5 mortgages every two weeks. i. What is the probability that…

A: (i) Obtain the probability that they sell 5 mortgages in a two week period. The probability that…

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

A: Given,

Q: If the probability of one event occurring is 1/4 and the probability of another event occurring is…

A: Given Data: P( event 1)=1/4 P( event 2)=1/10   Assuming the both events to be independent