Example 10: A survey from Teenage Research Unlimited (Northbrook, Illinois) found that 30% of teenage consumers receive their spending money from part- time jobs. If 5 teenagers are selected at random, find the probability that at least 3 of them will have part-time jobs. Solution

Q: If a student is picked at random, what is the probability that a) he or she is a full-time student…

A: The data is given by   No work part time work full time work Total Full time student 0.15 0.22…

Q: An experiment has four equally likely outcomes: E1, E2, E3, and E4.a. What is the probability that…

A:

Q: If 58% of the people at a certain conference are doctors, 38% are men, and 18% are male doctors,…

A: Given If 58% of the people at a certain conference are doctors, 38% are men, 18% are male doctors,

Q: The local nursery is waiting for its spring annuals to be delivered, and 20% of the plants ordered…

A: Here, p is 20% and n is 120.

Q: If a teacher calls on a student randomly to answer a question, what is the probability the student…

A: Given : In a certain class of students, there are 9 boys from Morrow, 6 girls from Stockbridge, 10…

Q: If you randomly select a card from a well-shuffled standard deck of 52 cards, what is the…

A: In a deck of 52 cards there are 13 clubs. This means (52-13)=39 cards are not club.

Q: Example 5: Box A contains 5 red and 3 white marbles and box B contains 2 red and 6 white marbles. If…

A: Answer: From the given data,

Q: At a car manufacturing plant, 20% of cars have some sort of defect when they come off the line. If…

A: The Binomial probability distribution is: PX=xnxpx1-pn-x In the formula, n denotes the number of…

Q: What is the probability that the first time Alex gets a job interview will not be the sixth…

A: here  p = probability of getting a chance of job interview = 0.19

Q: Once a woman won​ $1 million in a​ scratch-off game from a lottery. Some years​ later, she won​ $1…

A: The number of participant in first lottery is 4.2 millions. The number of participant in second…

Q: In a class, 50% of the students play basketball, 20% of the students play football and 10% of the…

A:

Q: If one student is randomly chosen from the group, what is the probability that the student chose…

A: Given problem Given that     Homework Housework Outside Employment Recreation Other Total…

Q: In a given​ year, 1,895,051 males and 1,792,212 females were born in a certain country. If a child…

A: Given Data: The number of males born is: n(M)=1895051 The number of female born is: n(F)=1792212 The…

Q: Example 2. If an ordinary coin is spinned three times what is the probability of obtaining atleast…

A: In a fair coin, there are two possible outcomes Head and Tail PHead = 12PTail = 12

Q: Prior to a municipal election, a public-opinion poll determined that the probability of each of the…

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Q: A. If we took a random sample of a single individual from this population, what is the probability…

A: Let X be the number of yellow flowers which follows binomial distribution. The probability of…

Q: Q: If 5% of the people are carriers of a certain disease and 10% of them are young, what is the…

A: Given: % of people that are carriers = 5% % of people that are young = 10%

Q: In a class of students, the following data table summarizes how many students have a cat or a dog.…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 3. YO-Magic! Bakery receives on average 13 take-out orders of their best-selling cheesecake in one…

A: Given that, YO-Magic! Bakery receives on average 13 take-out orders of their best-selling cheesecake…

Q: At a car manufacturing plant, 10% of cars have some sort of defect when they come off the line. If…

A:

Q: a man is dealt with four diamond cards from an ordinary deck of 52 cards. If he is given five more…

A: A standard deck of cards has four suites: hearts, clubs, spades, diamonds Each suite has 13 cards:…

Q: In horse​ racing, a trifecta is a race in which you must pick the​ first-, second-, and​ third-place…

A: A trifecta is a race in which you must pick the​ first-, second-, and​ third-place winners in their…

Q: Suppose in the video game Harry Potter Returns, each time you kill a dragon there is a 10% chance…

A: Introduction: For a person who has played the game and killed 100 dragons, denote X as the number of…

Q: If a new car has, on average, 25 minor defects, what is the probability that the next new car will…

A: ANS GIVEN                 average(λ) =25 minor                      find p(x=25)  = ?

Q: 4. A set of traffic lights shows green for 45 seconds, amber for 5 seconds and red for 30 seconds.…

A: From the given information, Total time taken by traffic light is 80 seconds. For green it takes 45…

Q: a) If you choose a person at random, what is the probability that the person is color-blind? b) If a…

A: E1: Men   P(E1) = 0.5 E2: Female  P(E2) = 0.5 A: Color Blind P(A|E1) = 0.05 P(A|E2) = 0.0025

Q: The grade 10 board of officers of a school consists of seven girls and 4 boys.a committee of five…

A: We can select 2 girls from 7 girls in 7C2=21 ways We can select (5-2)=3 boys from 4 boys in 4C3=4…

Q: What is the probability that Larry Bird makes exactly one of his two free throws?

A: Let p be the probability that Larry bird makes free throw. Given that p = 0.50 Let X denote the…

Q: About 35% of the population have a college degree. If three people are randomly selected, what is…

A: Given,  p = 35% = 0.35 q = 1 - p = 1 - 0.35 = 0.65 Sample size, n = 3 Let X be a random number which…

Q: A couple has two children, and the older child is a boy. If the probabilities of having a boy or a…

A:

Q: In a class of students, the following data table summarizes how many students have a cat or a dog.…

A:

Q: In a coffee shop "Scratch and Win" contest, one out of three cards is a winner. What is the…

A: From the given information, one out of three cards is a winner. P(winner)=1/3 Let us consider, the X…

Q: In an experiment, the probability that event A Occurs is and the probability that event B 6 occurs…

A:

Q: If you select one card at random from a standard deck of 52 cards, what is the probability of that…

A: topic- probability

Q: Example 2.24 In a city, suppose that only 60% of the people read a newspaper. What is the…

A: Let X be the number of reading the news paper  p be the probability of the people reading a news…

Q: Example 8.4 An educational institution has offered admission to 100 students. On an average, the…

A:

Q: According to Wealth committee data, 0.3% of people have anemia. If 2000 people are randomly…

A: Given,n=2000p=0.003here n value is very large and p value is very smallso, binomial distribution…

Q: - An American Society of Investors survey found 30% of individual investors have used a discount…

A: 13 Given that 30% of individual investors have used a discount broker. The sample size is 9. Let us…

Q: 16. Two rescue crews set out to find a lost hiker in the Kern Canyon. Suppose the first crew has a…

A: Given Let A be the event where crew 1 finds the hiker before nightfall       B be the event where…

Q: EXAMPLE 1 Máňufacturing A factory of the Global Manufacturing Company was manufacturing products…

A: Given that  n=12 , p=15%=0.15 , q=1-p=1-0.15=0.85 X~Binomial(n=12,p=0.15) p=Probability of defective…

Q: Suki is enrolled in one data-management class at her school and Leo is in another. A school quiz…

A:

Q: Example 10.13 It has been found that 7 per cent of the tools manufactured by a factory are…

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Q: Example 4: A manufacturer knows that the condensers he makes contain on average 1% defectives. He…

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Q: 4. Sixty percent of the families in a certain community own their own car, thirty percent own their…

A:

Q: In a particular university, 46% of female undergraduates take on debt. If you are asked to Find the…

A:

Q: Approximately 6% of the male population is color-blind. If a random sample of 250 male adults is…

A: The random variable color-blindness follows binomial distribution. We have to find the probability…

Q: An unreliable company produces a large shipment of blenders where 13% have a defective motor, and…

A: It is given that, 13% of blenders have a defective motor, 25% have a defective electrical cord and…

Q: If Johnny plays Russian Roulette twice, by spinning a revolver containing one bullet in one of the…

A: Probability of an event is computed by taking the ratio of number of favourable outcomes to total…

Q: What is the probability that the next card dealt will be a face card if the 12 cards dealt so far…

A: In this problem, the probability that the next card dealt will be a face card after drawing 12 cards…