(i) Total number of balls in the bag = 8 Probability of getting a red ball = (Number of favorable outcomes)/(Number of total possible outcomes) = 3/8 (ii) Probability of not getting red ball = 1 Probability of getting a red ball = 1 - 3/8 = 5/8
(i) Total number of balls in the bag = 8
Probability of getting a red ball = (Number of favorable outcomes)/(Number of total possible outcomes) = 3/8
(ii) Probability of not getting red ball = 1
Probability of getting a red ball = 1 – 3/8 = 5/8
Total number of marbles = 5 + 8 + 4 = 17 (i) Number of red marbles = 5 Probability of getting a red marble = (Number of favorable outcomes)/Number of total possible outcomes) = 5/17 (ii) Number of white marbles = 8 Probability of getting a white marble = (Number of favorable outcomes)/Number of totaRead more
Total number of marbles = 5 + 8 + 4 = 17
(i) Number of red marbles = 5
Probability of getting a red marble = (Number of favorable outcomes)/Number of total possible outcomes) = 5/17
(ii) Number of white marbles = 8
Probability of getting a white marble = (Number of favorable outcomes)/Number of total possible outcomes) = 8/17
(iii) Number of green marbles = 4
Probability of getting a green marble = (Number of favorable outcomes)/Number of total possible outcomes) = 4/17
Probability of not getting a green marble = 1 – 4/17 = 13/17
Total number of coins in a piggy bank = 100 + 50 + 20 + 10 = 180 (i) Number of 50 p coins = 100 Probability of getting a 50 paise coin = (Number of favorable outcomes)/(Number of total possible outcomes) = 100/180 = 5/9 (ii) Number of ₹ 5 coins = 10 Probability of getting ₹ 5 coin = (Number of favorRead more
Total number of coins in a piggy bank = 100 + 50 + 20 + 10 = 180
(i) Number of 50 p coins = 100
Probability of getting a 50 paise coin = (Number of favorable outcomes)/(Number of total possible outcomes) = 100/180 = 5/9
(ii) Number of ₹ 5 coins = 10
Probability of getting ₹ 5 coin = (Number of favorable outcomes)/(Number of total possible outcomes) = 10/180 = 1/18
Probability of not getting a ₹ 5 = 1 – 1/18 = 17/18
Total number of fishes in a tank = Number of male fishes + Number of female fishes = 5 + 8 = 13 Probability of getting a male fish = (Number of favorable outcomes)/(Number of total possible outcomes) = 5/13
Total number of fishes in a tank
= Number of male fishes + Number of female fishes = 5 + 8 = 13
Probability of getting a male fish = (Number of favorable outcomes)/(Number of total possible outcomes) = 5/13
Total number of possible outcomes = 8 (i) Probability of getting 8 = (Number of favorable outcomes)/(Number of total possible outcomes) = 1/8 (ii) Total number of odd numbers on spinner = 4 Probability of getting an odd number = (Number of favorable outcomes)/(Number of total possible outcomes) = 4/Read more
Total number of possible outcomes = 8
(i) Probability of getting 8 = (Number of favorable outcomes)/(Number of total possible outcomes) = 1/8
(ii) Total number of odd numbers on spinner = 4
Probability of getting an odd number = (Number of favorable outcomes)/(Number of total possible outcomes) = 4/8 = 1/2
(iii) The numbers greater than 2 are 3, 4,5, 6, 7, and 8. Therefore, total numbers greater than 2 = 6
Probability of getting number greater than 2 = (Number of favorable outcomes)/(Number of total possible outcomes) = 6/8 = 3/4
(iv) The numbers less than 9 are 1, 2, 3, 4, 6, 7, and 8.
Therefore, total numbers less than 9 = 8
Probability of gettinga number less than 9 = 8/8 = 1
A bag contains 3 red balls and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is (i ) red ? (ii) not red?
(i) Total number of balls in the bag = 8 Probability of getting a red ball = (Number of favorable outcomes)/(Number of total possible outcomes) = 3/8 (ii) Probability of not getting red ball = 1 Probability of getting a red ball = 1 - 3/8 = 5/8
(i) Total number of balls in the bag = 8
See lessProbability of getting a red ball = (Number of favorable outcomes)/(Number of total possible outcomes) = 3/8
(ii) Probability of not getting red ball = 1
Probability of getting a red ball = 1 – 3/8 = 5/8
A box contains 5 red marbles, 8 white marbles and 4 green marbles. One marble is taken out of the box at random. What is the probability that the marble taken out will be (i) red ? (ii) white? (iii) not green?
Total number of marbles = 5 + 8 + 4 = 17 (i) Number of red marbles = 5 Probability of getting a red marble = (Number of favorable outcomes)/Number of total possible outcomes) = 5/17 (ii) Number of white marbles = 8 Probability of getting a white marble = (Number of favorable outcomes)/Number of totaRead more
Total number of marbles = 5 + 8 + 4 = 17
(i) Number of red marbles = 5
Probability of getting a red marble = (Number of favorable outcomes)/Number of total possible outcomes) = 5/17
(ii) Number of white marbles = 8
Probability of getting a white marble = (Number of favorable outcomes)/Number of total possible outcomes) = 8/17
(iii) Number of green marbles = 4
Probability of getting a green marble = (Number of favorable outcomes)/Number of total possible outcomes) = 4/17
Probability of not getting a green marble = 1 – 4/17 = 13/17
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See lessA piggy bank contains hundred 50p coins, fifty 1 coins, twenty 2 coins and ten 5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin (i) will be a 50 p coin ? (ii) will not be a ` 5 coin?
Total number of coins in a piggy bank = 100 + 50 + 20 + 10 = 180 (i) Number of 50 p coins = 100 Probability of getting a 50 paise coin = (Number of favorable outcomes)/(Number of total possible outcomes) = 100/180 = 5/9 (ii) Number of ₹ 5 coins = 10 Probability of getting ₹ 5 coin = (Number of favorRead more
Total number of coins in a piggy bank = 100 + 50 + 20 + 10 = 180
See less(i) Number of 50 p coins = 100
Probability of getting a 50 paise coin = (Number of favorable outcomes)/(Number of total possible outcomes) = 100/180 = 5/9
(ii) Number of ₹ 5 coins = 10
Probability of getting ₹ 5 coin = (Number of favorable outcomes)/(Number of total possible outcomes) = 10/180 = 1/18
Probability of not getting a ₹ 5 = 1 – 1/18 = 17/18
Gopi buys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish What is the probability that the fish taken out is a male fish?
Total number of fishes in a tank = Number of male fishes + Number of female fishes = 5 + 8 = 13 Probability of getting a male fish = (Number of favorable outcomes)/(Number of total possible outcomes) = 5/13
Total number of fishes in a tank
See less= Number of male fishes + Number of female fishes = 5 + 8 = 13
Probability of getting a male fish = (Number of favorable outcomes)/(Number of total possible outcomes) = 5/13
A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 and these are equally likely outcomes. What is the probability that it will point at
Total number of possible outcomes = 8 (i) Probability of getting 8 = (Number of favorable outcomes)/(Number of total possible outcomes) = 1/8 (ii) Total number of odd numbers on spinner = 4 Probability of getting an odd number = (Number of favorable outcomes)/(Number of total possible outcomes) = 4/Read more
Total number of possible outcomes = 8
See less(i) Probability of getting 8 = (Number of favorable outcomes)/(Number of total possible outcomes) = 1/8
(ii) Total number of odd numbers on spinner = 4
Probability of getting an odd number = (Number of favorable outcomes)/(Number of total possible outcomes) = 4/8 = 1/2
(iii) The numbers greater than 2 are 3, 4,5, 6, 7, and 8. Therefore, total numbers greater than 2 = 6
Probability of getting number greater than 2 = (Number of favorable outcomes)/(Number of total possible outcomes) = 6/8 = 3/4
(iv) The numbers less than 9 are 1, 2, 3, 4, 6, 7, and 8.
Therefore, total numbers less than 9 = 8
Probability of gettinga number less than 9 = 8/8 = 1