You have a collection of 15 phone cords, 4 of which work to charge your current phone and 11 of which are either broken or belong to okl phones. You pick 2 cords randomly from the collection. Let X = the number of working cords among those 2. Write out the probability mass function (pmf) of X in table form.

Q: A restaurant owner speculates from his past experience that 20% of the customers cancel their…

A: We have to find probability case by case and the  add.

Q: th

A: Given, There are total 10 balls in a case In which 3 balls are new

Q: Gian is a teacher, as per her class rule, the probability of not getting an additional points for a…

A: Let X be the number of students who getting an additional points from binomial distribution with…

Q: Your daughter is a teacher in a state university. As per her class rule, the probability of not…

A: Given

Q: At a certain university it has been estimated that the probability that a male freshman will major…

A: Given that the probability that a male freshman will major in math is 1/10 and the probability that…

Q: Enrique buys a bag of cookies that contains 8 chocolate chip cookies, 4 peanut butter cookies, 6…

A:

Q: John Michael buys a bag of cookies that contains 8 chocolate chip cookies, 8 peanut butter cookies,…

A: The total number of cookies is  8×4 =32. The total number of sugar cookies is 8. The total number of…

Q: person who goes home from work has the opportunity to choose one of two ways. Their probability of…

A:

Q: he unemployment rate in a city is 14%. If 6 people from the city are sampled at random, find the…

A: When there are n trials and probability is same for all trials , we use binomial distribution .

Q: The probability that a student in Oakland will receive a B in Kathy Williamson's statistics class is…

A: Given that, The probability that a student in Oakland will receive a B in Kathy Williamson's…

Q: lobe has a number of inquiries arriving in their system at 3 inquiries per minute. What is the…

A: Consider X denotes inquiries arriving in the system which follows Poisson distribution with λ=3.

Q: A history class is comprised of 10 female and 3 male students. If the instructor of the class…

A: Given that the information  Number of female students =10 Number of Male students=3 Total =17 we…

Q: The probability that a person in the United States has type B​+ blood is 10​%. Three unrelated…

A: Givenn=3p=0.1q=1-pq=1-0.1=0.9Let X=no.of people have B+ blood groupX~Binomial(n=3 , p=0.1)P(X=x)=3x…

Q: nd the probability that if 4 sticks are rarndomly arranged in a row, they will be arranged in order…

A: Number of ways of arranging 4 sticks will be: Total ways = 4!                 = 24

Q: Assume that when adults with smartphones are randomly selected, 55% use them in meetings or classes.…

A: It is given that the random variable X i.e, smartphones in meetings or classes follows Binomial…

Q: There are 6 clocks in a box, 1 of them made by company A, 3 by company B and 2 by company C. Draw 2…

A: Given the event of drawing 2 clocks from the box without replacement. The box contains 6 clocks, 1…

Q: Hertz has a line of luxary cars named the 'Prestige Collection'. They have 20 cars in their fleet…

A: (a). Find the probability that Hertz has to turn away customers because they overbooked: The number…

Q: A box containing 8 yellow and 5 red marbles. If two marbles are to be drawn at random without…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: the table describes the smoking habits of a group of asthma sufferers. If two different people are…

A: It is given that the total number of women is 456 and the total number of people is 954.

Q: At the cartons  produced by a company 3% have a puncture 6% have a smashed corner and 0.4% have both…

A: Given that , cartons produced by a company, 3% have a puncture, 6% have a smashed corner, and 0.4 %…

Q: The average number of field mice per acre in a 5-acre wheat field is estimated to be 10. Find the…

A: Let X be the number of mice. The average number of field mice per acre is estimated to be 10.

Q: In a box of 30 chocolates, there are 5 chocolate covered cherries, 10 are filled with caramel, 15…

A: Since I eat the first piece, so this problem is using without replacement.  I can pick any 2 pieces…

Q: Suppose each time you take a free-throw, there’s 20% chance that it will go in. You must make 5…

A: As given: There is a 20% chance that a throw will go in. Hence, P( throw) = p = 20% or 0.2 The…

Q: A number of customers arrive at a cafeteria during lunch hour at an average rate of 0.025 per…

A: Reviewing information, X: Average rate of arrival of customers= 0.025 per second

Q: The unemployment rate in a city is 13%. If 6 people from the city are sampled at random, find the…

A:

Q: An urn contains 5 white balls and 7 red balls. A second urn contains 7 white balls and 6 red balls.…

A: An urn contains 5 white balls and 7 red balls. A second urn contains 7 white balls and 6 red…

Q: The probability of a randomly selected shark attacking during a year is 0.0612. If a family of a…

A: Answer: Given that: p= 0.0612 , n= 3 now will use Binomial probability…

Q: Urn X contains 3 red and 2 white balls, and bowl Y contains 4 red and 3 white balls. A ball is drawn…

A: We have to use multiplication theory of probability to find the required probability.

Q: The table summarizes results from 988 pedestrian deaths that were caused by automobile accidents.…

A: Total number of pedestrian death = 42 + 85 + 250 + 611 = 988 Number of pedestrian death that neither…

Q: he probability that a person in the United States has type B​+ blood is 10​%. Three unrelated people…

A: Given data,The probability that a person in the United States has type B​+ blood is p=10%=0.10If 3…

Q: A person died prematurely, find the probability with which he could have been a heavy smoker given…

A: Step 1:First, we define the events:D: The person died prematurelyH: The person is a heavy smokerL:…

Q: An urn contains 10 red balls, 14 green balls, and 7 yellow balls. What is the probability of…

A: We have given that Red balls = 10 Green balls = 14 Yellow balls = 7 Total balls = 10+14+7 = 31

Q: A history class is comprised of s female and 6 male students. If the instructor of the class…

A: Given: Number of females = 8 Number of males = 6 Total number of students = 8+6…

Q: Assume That when adults with smart phones are randomly selected, 52% use them in meetings or…

A: Solution: Let X be the number of number of adult smart phone users use their smart phones in meeting…

Q: An urn contains 15 balls marked LOSE and 3 balls marked WIN. Suppose that Chuck and Delilia take…

A: An urn contains 15 balls marked LOSE and 3 balls marked WIN Total = 18 Chuck makes the first…

Q: Wyatt buys a bag of cookies that contains 8 chocolate chip cookies, 4 peanut butter cookies, 8 sugar…

A: Total number of cookies = 26 The probability of getting one cookie as the chocolate chip is P(first)…

Q: An urn contains 8 white balls and 2 red balls. A second urn contains 3 white balls and 8 red balls.…

A: Given that, An urn contains 8 white balls and 2 red balls. A second urn contains 3 white balls and 8…