74. A class consists of 80 students, 25 of them are girls and 55 boys, 10 of them are rich and remaining poor, 20 of them are fair complexioned. What is the probability of selecting a fair complexioned rich girl ?

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

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Q: There are 40 chocolates in a box, all identical shapes. There 16 are filled with nuts, 14 with…

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Q: From a group of 11 people, you randomly select 2 of them.What is the probability that they are the 2…

A: Combination: A combination is a selection of objects without considering the order.Let n be the…

Q: Compute the probability of randomly drawing five cards from a deck and getting 3 Aces and 2 Kings

A: The number of cards in a deck of cards is 52.

Q: A bag contains 10 balls consisting of 4 green, 3 blue and 3 red balls. If two balls are chosen…

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Q: Among contestants in a competition are 49 woman and 29 men. If 5 winners are selected, what is the…

A: Obtain the probability that they are all woman. The probability that they are all woman is obtained…

Q: A club of 15 people consists of 7 men and 8 women. A team of 7 is randomly selected from the club.…

A: Given, no.of mens=7no.of women=8total no.of people =15

Q: There are 20 black cards, 10 red cards, 12 yellow cards, and 8 green cards on the table.  What is…

A: Given,no.of black cards=20no.of red cards=10no.of yellow cards=12no.of green cards=8Total no.of…

Q: jar contains 7 red marbles, 8 green marbles, and 4 blue marbles. What is the probability that you…

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Q: What would the probability of selecting all 5 cards to be a Diamond or a Club

A: Combination Rule:The arrangement of r objects from n different objects is given by:

Q: A bag contains 4 red marbles numbered 1-4 and 6 yellow marbles numbered 1-6, and 4 green marbles…

A: Given data, No of red marbles=4 No of yellow marbles=6 No of green marbles=4 Total marbles=14…

Q: Suppose that you have a barrel with 7 apples and 8 oranges in it. If 2 fruits are selected, what is…

A: use formula : nCr=n!/(r!*(n-r)!)

Q: There are 14 fish in a pond: 7 trout, 4 bass, and 3 sardines. If I fish up 5 random fish, what is…

A: Given Total number of fish = 14 Trout = 7 Bass = 4 Sardines = 3

Q: What is the probability of getting exactly one head when a fair coin is tossed for 3  times?

A: GivenA coin is tossed 3 timesn=3p=12=0.5        ( head occurs once in 2 chances i.e., head or…

Q: What is the probability of selecting a red marble from a bag containing 8 red marbles, 10 blue…

A: Here we need to find the probability of selecting a red marble from the bag.

Q: What is the probability of getting 6 or more girls in 8 births

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Q: A club of 15 people consists of 7 men and 8 women. A team of 9 is randomly selected from the club.…

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Q: What is the probability of getting either a sum of 7 or at least one 6 in the roll of a pair of​…

A: We can get sum of 7 if the outcomes are: (1,6) , (6,1) , (2,5) , (5,2) , (3,4) , (4,3)

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

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