A box containş 4 bad and 6 good tubes. The tubes are checked by drawing a tube at random, testing and repeating the process until all 4 bad tubes are located. What is the probability that the fourth bad tube will be located (i) on the fifth test (ii) on the tenth test ?

Q: A committee of 5 persons is to be formed from 6 men and 4 women. What is the probability that the…

A:

Q: A customs inspector decides to inspect 2 of 12 shipments that arrive from Madrid by plane.  If the…

A:

Q: A jar contains 5 red marbles 7 green marbles and 4 blue marbles.  What is the probability that you…

A: There are totally 16 marbles in a jar in which 5 red, 7 green, and 4 blue. The probability that…

Q: A bag contains 5 red marbles and 4 white marbles. A marble is selected from the bag then replaced,…

A: From the provided information, Red marbles = 5 White marbles = 4 Total marbles in a bag = 5 + 4 = 9…

Q: A postman has to deliver five letters to five different houses in a street. Unfortunately, the rain…

A: Probability is a branch of mathematics which is basically deals with the chances of happening an…

Q: bag contains 4 blue balls and 8 red balls. If two are drawn from the bag at random, what is the…

A:

Q: A bag contains 2 red marbles, 7 blue marbles and 5 green marbles. If two marbles are drawn out of…

A:

Q: From a coin box containing 4 dimes and 2 nickels, 3 coins are selected at random with replacement…

A: We have to answer basic questions on coins.

Q: orange balls . If Vince chooses 8 balls at random from the urn, what is the probability. that he…

A: First, we calculate the total number of balls: Total balls = 7+5                 = 12   We need to…

Q: Suppose a jar contains 17 red marbles and 14 blue marbles. If you reach in the jar and pull out 2…

A: Here, a jar contains 17 red marbles and 14 blue marbles. Select 2 marbles at random.

Q: There are three English teams among the eight tears that have reached the quarter-finals of the…

A: Permutation and combination used to calculate the number of possible ways to arrange or select a…

Q: A bag contains 4 red marbles, 8 blue marbles and 2 green marbles. If two marbles are drawn out of…

A: Given probability is evaluated.

Q: A manufacturing machine has a 4% defect rate. If 4 items are chosen at random, what is the…

A:

Q: A student has a total of 11 books and 4 of her books are science fiction. If she arranges them on a…

A: Given that there are total of 11 books and 4 of her books are science fiction. The total number of…

Q: In a box there are 12 male and 6 female piglets. If 6 piglets are chosen at random, what is the…

A:

Q: There are 90 drill bits in a box at a machine shop. Fifty of the drill bits are 3/8-inch diameter,…

A:

Q: A committee of 5 is to be selected from a group of 6 men and 9 women. If the selection is made…

A: The total number of women is 9.The total number of men is 6.The number of people selected at random…

Q: In a class of 30 students, 12 have a cat and 19 have a dog. There are 6 students who do not have a…

A:

Q: There are 50 girls and 50 boys at a party, all of whom have written down their names on sheets paper…

A: From the given information we find the probability.

Q: If a box has twenty balls, where three balls are red, twelve balls blue and the rest balls are…

A:

Q: Two students are randomly selected from a class of 12 boys and 9 girls. What is the probability that…

A: Number of boys = 12  Number of girls = 9  Total students = 21

Q: In a lot of 20 batteries, 4 are defective. If 2 are chosen, determine the probability that both are…

A: Number of defective batteries=X= 4 Number of batteries in a lot=n=20 Number of non defective…

Q: A manufacturing machine has a 5% defect rate. If 4 items are chosen at random, what is the…

A: here 5% defect rate so 0.05 and 4 items chosen so put 4 in power

Q: There are 20 students in a class. Arshia, Manu, and Eva from the class, are great friends. If the…

A:

Q: four people are selected for a committee from 4 Democrats and 3 Republicans. What is the probability…

A:

Q: A bag contains 8 red marbles, 3 blue marbles and 2 green marbles. If two marbles are drawn out of…

A: Answer - A bag contains 8 red marbles, 3 blue marbles and 2 green marbles.                 Total = 8…

Q: A bag contains 20 marbles, of which 3 are blue and 7 are green. One marble is drawn from the bag.…

A: Given Total number of marble=20 Number of blue marble=3

Q: Lebo has 3 blue pens,2 red pens,5 black pens and 2 pencils in his pencil case.What is the…

A: Given : Lebo has 3 blue pens,2 red pens,5 black pens and 2 pencils in his pencil case

Q: A drum contains 3 black balls, 5 red balls and 6 green balls. If 4 balls are selected at random what…

A: Givena drum containsno.of black balls = 3no.of red balls =5no.of green balls = 6Total no.of balls…

Q: A history class is comprised of 9 female and 5 male students.if the instructor of the class randomly…

A: There are 14 students in the class (= 9 female + 5 male).

Q: A gambler places a bet on a horse race. To win, he must pick the top three finishers in order. Six…

A: Here Given  Total no of Horse= n= 6

Q: A homeowner selects six plans selected at random from a set of proposals drawn by his hired…

A:

Q: A bag contains 6 red marbles, 4 blue marbles and 7 green marbles. If three marbles are drawn out of…

A: The formula for combination is nCr = n! / [r! (n – r)!] = [n (n – 1) … (n – r + 1)]/r!. Explanation:…

Q: A box has 20 green hats and 15 blue hats. If you pick 3 hats without replacement, what is the…

A: Given,no.of green hats=20no.of blue hats=15total no.of hats=35

Q: A large cube is painted red from all its sides, and then cut into 27 smaller cubes (like a rubiks…

A:

Q: closet contains 8 pair of shoes. If 4 shoes are randomly selected, what is the probability that…

A: Here use combination for ans the question

Q: A marble is selected at random from a jar containing 5 red marbles, 6 yellow marbles, and 3 green…

A: From the provided information, The jar contains 5 red marbles, 6 yellow marbles and 3 green marbles.…

Q: In a bag there are 10 marbles: 5 blue, 3 purple, and 2 red. Three marbles are chosen, one at a time,…

A: From the provided information, Total blue marble = 5 Total marbles = 10

Q: If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a…

A: From the provided information, Total books in a shelf = 5 + 3 + 1 = 9 If three books are picked at…

Q: A box contains 3 blue and 2 red marbles while another box contains 2 blue and 5 red marbles. A…

A: Given problem Given that

Q: if two students are randomly chosen from a group of 3 boys and 3 girls, what is the probability that…

A:

Q: In a box, there are 9 black ball pens and 3 red ball pens. If two ball pens will be taken randomly,…

A: Total number of ball pens in a box=12 Out of which 9 are black ball pens and 3 are red ball pens.…

Q: A box contains 2 white and 3 blue identical balls. If two balls are picked at random one after the…

A: A box contains 2 white and 3 blue identical balls Total = 5 If the balls are drawn without…

Q: A box has 3 red balls and 4 yellow balls. What is the probability of getting two red balls, if you…

A: Solution: From the given information, a box contains 3 red balls and 4 yellow balls. Total number of…

Q: If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a…

A:

Q: A glass jar contains 1 red, 3 green, 2 blue and 4 yellow marbels. If a single marble is chosen at a…

A:

Q: There are 3 red shirts, 4 blue shirts, 1 black shirt and 2 grey shirts hanging in a closet. What is…

A: Given data, Red shirts=3 Blue shirts=4 Black shirts=1 grey shirts=2 Total shirts=10 P(Not Blue…

Q: A committee of 5 people was selected from 6 men and 9 women. If the selection process is random,…

A: Solution

Q: A committee of three people is to be randomly selected from a group of 20 men and 17 women. What is…

A: Given data; men in group= 20 Women  in group  = 17 Therefore; Total people  in group  = 20 +17  = 37…

Q: A box contains 6 defective bulbs and 10 functional bulbs. If 4 bulbs are to be chosen at random what…

A: Given ,           no. of defective bulbs = 6           no. of functional bulbs = 10         Total no…