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Q.

In 50 throws of a die, the outcomes were noted as under: A die is thrown at random. The probability of getting an even number is:

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a

1225

b

350

c

18

d

12

answer is A.

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Detailed Solution

Given a die is thrown 50 times and the frequency distribution is noted.
Question Image

Question Image

The even numbers are 2, 4 and 6.
The total frequency of getting even number = frequency of getting 2 + frequency of getting 4 + frequency of getting 6
= 9 + 7 + 8
= 24
Number of times even number appeared = 24
And, total number of outcome = 50
The probability of an event =

\frac{Number of favorable outcomes}{Total number of outcomes}

Now, the probability of getting even number is,

= Number of times even number appeared Total number of outcomes = 2450

= 1225

The probability of getting even number is

1225

.
Hence, option 1 is correct.

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