34.
Read the following passage and answer the questions given at the end :
Diwali Fair
A game in a booth at a Diwali Fair involves using a spinner first. Then, if
the spinner stops on an even number, the player is allowed to pick a
marble from a bag. The spinner and the marbles in the bag are
represented in Figure-9.
Prizes are given, when a black marble is picked. Shweta plays the game
once.
4
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Figure-9
What is the probability that she will be allowed to pick a marble
from the bag ?
(ii)
Suppose she is allowed to pick a marble from the bag, what is the
probability of getting a prize, when it is given that the bag contains
20 balls out of which 6 are black ?
T
Answers
Answered by
1
Answer:can u sed a pic of fig 9
Step-by-step explanation:
Answered by
2
Answer:
Step-by-step explanation:
(i) According to question,
Probability that she is allowed to pick a marble
= (Total count of even numbers)/(Total count of numbers)
= 5/6
(ii) Probability of getting prize is given by
P(E)= Number pf black marbles/ Total no. of marbles
= 6/20 = 3/10
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