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Question

Outcome2356Frequency10141620

A dice was thrown 80 times and the frequency of occurrence of 2, 3, 5 and 6 is given in the table. What is the probability of occurrence of 1 or 4?


A

1

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B

0.67

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C

0.25

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D

0

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Solution

The correct options are
C

0.25


D

0


Total frequency of occurrence of 2, 3, 5 and 6 = 60.

Frequency of occurrence of 1 or 4 = 80 - 60 = 20.

Probability of occurrence of 1 or 4 = Frequency of occurrence of 1 or 4Total number of times die is thrown

So, probability of occurrence of 1 or 4 = 2080 = 14 = 0.25


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