Sparsh Thapa
asked a question
Subject: Applied Mathematics, asked on on 30/1/22
Bag II contains 3 red and 7 black balls and Bag III contains 4 balls of unknown colour. They then asked the audience to select balls at random. Based on the above information, answer the following questions. (a) Two balls are selected at random from bag II without replacement. If the second ball is red, what is the probability that the first selected ball is also red? (b) Two balls are selected at random from bag III without replacement and are found to be white. What is the probability that all the balls in the bag are white? (c) Aditya, one of Rohan’s friends, transferred a ball from bag I to bag II. If a ball drawn from bag II after transferring the ball is found to be red then, what will be the probability that the transferred ball is black?
Sparsh Thapa
asked a question
Subject: Applied Mathematics, asked on on 29/1/22
If a family has two children, then what is the conditional probability that both the children are boys, if it is known that the older child is a boy?
Sparsh Thapa
asked a question
Subject: Applied Mathematics, asked on on 28/1/22
. A school has to choose from 10 boys and 7 girls who are very interested in sports. Out of these students in how many ways can a team of 5 members for Athletics be formed if the team has (a) no girls (b) 2 boys and 3 girls (c) at least 3 boys
John Kingara
asked a question
Subject: Applied Mathematics, asked on on 16/8/22
The human gestation length is said to be normally distributed with a mean of 266days and a standard deviation of 16days.suppose 64pregnancies are randomly selected. What is the probability that the average gestation length lies between 262 and 270 days
Sparsh Thapa
asked a question
Subject: Applied Mathematics, asked on on 4/12/21
Four cards are chosen from a pack of 52 cards. Then find Number of ways of choosing 4 cards from the pack.(ii) In how many of these 4 cards, 3 are red and one is black (iii) In how many of these 4 cards are of the same colour.
Sparsh Thapa
asked a question
Subject: Applied Mathematics, asked on on 28/1/22
Bag II contains 3 red and 7 black balls and Bag III contains 4 balls of unknown colour. They then asked the audience to select balls at random. Based on the above information, answer the following questions. (a) Two balls are selected at random from bag II without replacement. If the second ball is red, what is the probability that the first selected ball is also red? (b) Two balls are selected at random from bag III without replacement and are found to be white. What is the probability that all the balls in the bag are white? (c) Aditya, one of Rohan’s friends, transferred a ball from bag I to bag II. If a ball drawn from bag II after transferring the ball is found to be red then, what will be the probability that the transferred ball is black?
Sparsh Thapa
asked a question
Subject: Applied Mathematics, asked on on 28/1/22
If a family has two children, then what is the conditional probability that both the children are boys, if it is known that the older child is a boy?