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If the probabilities for A to fail in an...

If the probabilities for A to fail in an examination is 0.2 and that for B is 0.3, then the probability that either A or B fails is

A

`gt 0.5`

B

`0.5`

C

`le 0.5`

D

0

Text Solution

Verified by Experts

The correct Answer is:
C
(c) `"Given, ""P(A fial)"=0.2`
`"and, ""P(B fial)"=0.3`
` therefore" ""P(either A or B fail)"le"P(A fail)+P(B fial)"`
`le0.2+0.3`
`le0.5`
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