12. A bag contains 5 black and 7 white balls. A ball is drawn out of it and replaced in uie bag. Then a ball is drawn again. What is the probability that (i) both the balls drawn were black, (îi) both were white, (iii) the first ball was white and the second black, (iv) the first ball was black and the second white.

Q: A sweety jar contains 15 jelly babies, of which 8 are red and the rest are Green. Suppose you…

A: Let A be the event of getting  GREEN jelly babies and B be the event of getting RED jelly babies. By…

Q: 8. Three people are selected at random from five females and seven males. 12 (a) Find the…

A: Three people are selected at random from five females and seven males. Here there are total 12…

Q: There are 3 Chevrolets and 4 Fords in the company motor pool. Two cars are selected at random and…

A: No. of Chevrolets in the company motorpool = 3No. of Fords in the company motorpool = 4Total no. of…

Q: 7. A box has 5 Red and 6 Green and 8 Yellow balls. If a ball is drawn from the box, what is the…

A: When we deal with random experiments, there are many possible outcomes. We know all the possible…

Q: If two balls are drawn without replacement from a bag with eight white and four black balls, what is…

A: GivenNo.of white balls in a bag=8No.of black balls in a bag=4Total no.of balls=12

Q: A box contains 4 red balls, 8 white balls, and 6 black balls. Two balls are drawn at random from the…

A: probability of an event =number of choices of an event / number of total choices of sample space

Q: 6). The staff at a small company includes: engineers, and 2 executives. If a person is will be a…

A:

Q: 12. When Sue sees a bag of marbles, she grabs a handful at random. She has a bag that contains four…

A: There are total (4+3+2+1)=10 marbles in the bag.She can pick 5 marbles from 10 marbles in 10C5=252…

Q: 4. The Traffic Violations Department receives 5 violations per hour, find the probability that it…

A:

Q: . An urn contains 5 red balls, 9 blue balls and 6 green balls. Use this information for both (a) and…

A: Urn contain 5 red, 9 blue, 6 green

Q: 2. One bag contains four white balls and three black balls, and a second bag contains three white…

A: Given One bag contains= 4 white balls and 3 black balls, second bag = 3 white balls and 5 black…

Q: One bag contains 4 white balls and 3 black balls, and a second bag contains 3 white balls and 5…

A: Ans - Given, One bag contains 4 white balls and 3 black balls, and a second bag contains 3 white…

Q: An institute wants to appoint 6 lecturers. There are 40 applicants of which 25 are men and 15 are…

A: Given   40 application=25(men)+15(women)  Farmula used  nCr=n!/[r!(n-r)!]

Q: A box contains ten white and three black balls while another box contains three white and five black…

A:

Q: if you randomly choose one bean, do NOT replace it, and randomly choose another, what is the…

A: Given: 20 jelly beans in a jar: 2 yellow, 3 blue, 4 green, 5 red, 6 orange  Without Replacement we…

Q: A bag contains 3 white balls, 4 black balls, and 5 red balls. If 3 balls are drawn at random,…

A:

Q: Senior high school students are randomly selected to gather data on the hours spent per day playing…

A: Given data is  Length (in hours) Probability 0 0.012 1 0.062 2 0.281 3 0.326 4 ? 5…

Q: There are 3 blue balls, 5 red balls and 4 white balls in a bag. If a person selects two of the…

A: We have to find  the probability that the second ball is second ball is red, given that the first…

Q: There are three purple spoons and three green spoons in a bag. One is removed randomly and replaced…

A: Given information: Number of purple spoons = 3 Number of green spoons = 3

Q: one bag contains 4 white and 3 black and 2 nd bag contains 3 white and 5 black balls. One ball is…

A: bag 1 contains    4 white and 3 black  bag 2 contains  3 white and 5 black   One ball is drawn from…