In a certain shipment of 1000 laptops, 20 are defective. If a customer purchases the first 4 laptops in this shipment, what is the probability he gets at least one defective machine?

Q: On average, 4 computers from a lab are sent to laboratory for the repair. Find the probability that…

A: Computers from a lab are sent to laboratory for the repair = 4

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: If a poker hand of 5 cards is drown from a deck of 52 cards what is the probability that it will…

A:

Q: 2. Selected STEP students from four different year levels took the MTG qualifying examination. The…

A: Given information: x f 50 to 54 4 45 to 49 3 40 to 44 11 35 to 39 7 30 to 34 9 25 to…

Q: Construct the indicated confidence interval for the population mean μ using the​ t-distribution.…

A:

Q: Average annual US household spending on taxis* $100 80 60 40 20 '10 '11 '12 '13 '14 '15 '16 '17 '18…

A: Average annual US household spending on taxis* a) Draw a trendline for 2010-15. b) Draw a trendline…

Q: A bag contains 7 red marbles, 4 blue marbles and 5 green marbles. If three marbles are drawn out of…

A:

Q: A jar contains 4 red marbles, 8 green marbles and 12 white marbles. If a marble is drawn from the…

A:

Q: In a large city there are an average of 02 fires per year. What is the probability that next year…

A: Solution: Let X be the number of fires per year. From the given information, average number of fires…

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

A:

Q: Jack has 10 chips numbered 1-10, what is the probability that he selects an even number or less than…

A:

Q: One card is drawn at random from a well shuffled deck of 52 cards. If each outcome is likely,…

A: The provided information is as follows:The well-shuffled deck of cards are .One card is drawn…

Q: f you flipped a coin and it lands on heads 7 times in a row, what is the probability it will land on…

A: In the flipping of a coin, all the flips are independent.  If the coin is flipped 7 times, the odds…

Q: An office receives 20 faxed orders every two hours. What is the probability that an order will be…

A: The office receives 20 fax orders every two hours, therefore: The average number of fax every minute…

Q: A box contains 8 red balls and 7 black balls. If 2 balls are drawn in a row without returning, what…

A: Probability: It is a method for knowing the possible chances of an incident occurring. For example,…

Q: On average there are 3 leaks for every 100 miles of a pipeline. What is the probability that a…

A: On average there are 3 leaks for every 100 miles of a pipeline

Q: 2. If seven coins are tossed simultaneously, find the probability that they will just have three…

A: Given that  Number of coins tossed (n) = 7 In a fair coin Probability of head = Probability of tails…

Q: A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of…

A: Given problem is : A die is rolled 20 times and the number of twos that come up is tallied. Find…

Q: 4 out of 100 televisions in stock are defective. If you select two television la at random, find the…

A: It is given that the 4 out of 100 televisions are defective.

Q: A box contains 30 calculators of which 7 is defective. If three calculators are selected without…

A:

Q: A bag contains 7 red marbles, 4 blue marbles and 5 green marbles. If three marbles are drawn out of…

A: No. of red marbles=7No. of blue marbles=4No. of green marbles=5Total no. of marbles=7+4+5=16

Q: If the probability of being left handed is 0.23 and the probability of being right handed is 0.77…

A: Let X be the number left handed let p be the probability of being left handed  q be the probability…

Q: A group of 30 people is selected at random. What is the probability that at least 2 of them will…

A: Given : A group of 30 people is selected at random.   Question : What is the probability that at…

Q: If one card is randomly chosen from a standard deck, what is the probability that a six or a king is…

A: Given information- We have given an ordinary deck of cards. In an ordinary deck consist of 52 cards.…

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: n urn contains 3 red balls, 4 green balls and 1 yellow balls. An experiment consists of picking 3…

A: Given: Number of red balls = 3 Number of green balls = 4 Number of yellow balls = 1 Total number of…

Q: What is the probability th 5 up to 9 seconds to arriv alls arrive between the 2

A: let λ= 25 be the average number of balls entering the room every minute Xt~Pλ=25 Ti be the…

Q: Suppose that an Spotify user has stored 10 albums with 12 songs per album. What is the probability…

A: From the given information, Consider,  Total number of albums = 10 Each album have 12 songs per…

Q: If a student is drawing a card from a deck 40 times with replacement, Calculate the probability of…

A: Number of trials (n): 40 (the student is drawing 40 cards).Probability of drawing a face card (p):…

Q: If a person randomly picks and buys one of the four newsletters in the street each morning. What is…

A: Given that  A person randomly pics and buys one of the four news letters in the street each morning.…

Q: bability of obtaining at least 1 head?

A:

Q: If it takes an average of 12 minutes to back a dozen cookies, what is the probability that it will…

A: Given that  Average minutes to back a dozen cookies = 12 X ~ Poisson(λ = 12)

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.