In a supermarket there are 180 customers, 145 of whom will buy at least 1 item. If 4 customers are selected at random, one by one, find the probability that all buy at least 1 item. 0.579 0.586 0.418 0.421 12 Thirty-five percent of the people who own cellphones use their phones to send and receive text messages. Choose 3 cellphone owners at random, What is the probability that none use their phones for texting?

Q: At one private college, 34% of students are business majors. Suppose that 260 students are randomly…

A: The probability that the proportion of business students in the sample differs from the population…

Q: Of 100 patients with a certain disease, 10 were chosen at random to undergo a drug treatment that…

A:

Q: Among the adults in a large city, 30% have a college degree. A simple random sample of 100 adults is…

A:

Q: Of the 6 people who have taken their seats at a seminar, 2 have black hair. What is the experimental…

A: From the given information, 6 people who have taken their seats at a seminar, 2 have black hair.…

Q: a survey of athletes at a high school is conducted, and the following facts are discovered: 15% of…

A: It is given that 15% of the athletes are football players, 49% are basketball, and 6% of the…

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: Given, the number of none user cell phones=210, one cell phone user=292, for two=370, for three=141…

Q: Of the people who fished at Clearwater Park today, 40 had a fishing license, and 10 did not. Of the…

A: Given          Clearwater park= 40 people license                                and 10 people no…

Q: Only 4% of people have type AB blood. a. On average, how many donors must be checked to find someone…

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…

Q: In the United States, about 3.5 percent of teenagers have green eyes. For the teenagers who are born…

A: Given, P(Green) = 0.035 P(Glasses/Green) = 0.22 P(Glasses/Non Green) = 0.11 P(Non Green) = 0.965

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: Given information No of cellphones No of respondents 0 207 1 298 2 361 3…

Q: In a math class of 30 students, 17 are boys and 13 are girls. On a unit test, 4 boys and 5 girls…

A: Given,no.of boys=17no.of girls=13total no.of students=30

Q: Suppose that 56% of students in a college have a smart phone. If you select three students at…

A: Solution: It is given that 56% of students in a college have a smart phone.  Thus, probability that…

Q: A poll is given, showing 55% are in favor of a new building project. If 5 people are chosen at…

A: Given Information: Proportion p=0.55 Sample size n=5 The objective is to find the probability that…

Q: In a large population, 55% of the people have been vaccinated. If 3 people are randomly selected,…

A: Let "X" be the people that have been vaccinated.

Q: A survey of 300 people was done to which ice cream flavor they preferred vanilla or chocolate the…

A: Using the rules of venn diagram and probability we can solve these questions

Q: A batch of parts contains 80 parts from Batangas and 120 parts from a supplier of engine in Bulacan.…

A: The total number of parts are 200 Let Event B: The part is from Batangas and event C the part is…

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 95% of…

A: Let us denote:  A=football players B=basketball players Given that P(A)=95% = 0.95 , P(B)=4% =0.04 ,…

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 18% of…

A: Solution: Let A be the event that the athletes are football players and B be the event that the…

Q: A hair stylist knows that 87% of her customers get a haircut and 40% get their hair colored on a…

A: ANS#-  Here we are given that, P ( haircut ) = 0.87 ; P ( color ) = 0.40 ; P ( color | haircut ) =…

Q: Of a group of patients having injuries, 28% visit both a physical therapist and a chiropractor and…

A:

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 6% of…

A: It is given that P(football) = 0.06 P(basketball) = 0.70 P(football and basketball) = 0.04

Q: A poll is given, showing 35% are in favor of a new building project. If 8 people are chosen at…

A:

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 30% of…

A: Let A denote the event that athletes are play football Let B denote the event that athletes are play…

Q: A poll is given, showing 60% are in favor of a new building project. If 8 people are chosen at…

A: Given p =0.6 and n=3   P(X>3)=1-P(X<3)               =1-Cxn px(1-p)n-x…

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: The data related to cell phone users is given.

Q: A group of people were asked if Marilyn Monroe had an affair with JFK. 316 responded "yes", and 366…

A:

Q: 45 employees were randomly chosen from different companies and asked whether they were happy with…

A: T = Total  n(T) = 45

Q: n a family with 3 children, excluding multiple births, what is the probability of having exactly 1…

A: In this case, we need to obtain the probability of having exactly 1 girl. Given: A family of three…

Q: S) Of the 84 people who answered "yes" to a question, 14 were male. Of the 73 people that answered…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 46% of…

A: For any two events A and B, it is known that P[A or B] = P[A]  + P[B] – P[A and B].

Q: Of the people who fished at Clearwater Park today, 30 had a fishing license, and 20 did not. Of the…

A: Solution

Q: In a survey of 400 households, 360 said they own a VCR, 170 said they own a DVD player and 19 said…

A: From the given information, 360 said they own a VCR 170 said they own a DVD player and 19 said they…

Q: according to popular belief, 80% of adults enjoy drinking beer. choose a group of 4 adults at…

A: The probability distribution explains the all the possible outcome in the experiment and the…

Q: A poll is given, showing 80% are in favor of a new building project. If 9 people are chosen at…

A:

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 25% of…

A: Given that, Probability(Football player) = 25% Probability(Basketball player) = 60% Probability(Both…

Q: In the current campaign period, suppose a random person is selected, based on previous survey, there…

A:

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A:

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 64% of…

A: From the given information we want to find the probability.

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 9% of…

A: A n B=athletes play both football and basketball

Q: In a large population, 53% of the people have been vaccinated. If 3 people are randomly selected,…

A: In a large population, 53% of the people have been vaccinated. i.e. Probability that the people have…

Q: A poll is given, showing 30% are in favor of a new building project. If 10 people are chosen at…

A:

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: Probability = number of favourable outcome/ total number of outcomes

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 24% of…

A: Let F be the athletes who are football players. P(F)=0.24 Let B be the athletes who are basketball…

Q: It has been stated that about 41% of adult workers have a high school diploma but do not pursue any…

A: The probability that a randomly selected adult worker who has a high school diploma but do not…

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: This question can be solved using hypothesis test for a Proportion. Among the respondents, 208…

Q: A survey of athletes at a high school is conducted, and the following facts are discovered: 20% of…

A: Given: PFootball Player=0.20PBasketball Players=0.68PFootball & Basketball=0.07

Q: A sports camp specializes in three different types of sports during the summer.  Out of their  86…

A: From the given information, Total members (U) = 86. Consider, Swimming =S Biking = B Yoga = Y Number…

Q: In a survey of consumers aged 12 and​ older, respondents were asked how many cell phones were in use…

A: Given: Number of respondents who have four or more cell phones = 45 Total respondents =…

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A: