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Question: From each of the four married couples, one of the partners is selected at random. The probability t...

From each of the four married couples, one of the partners is

selected at random. The probability that those selected are of

the same sex is-

A

½

B

¼

C

1/8

D

1/16

Answer

1/8

Explanation

Solution

P =4C4+4C42C1×2C1×2C1×2C1\frac { { } ^ { 4 } \mathrm { C } _ { 4 } + { } ^ { 4 } \mathrm { C } _ { 4 } } { { } ^ { 2 } \mathrm { C } _ { 1 } \times { } ^ { 2 } \mathrm { C } _ { 1 } \times { } ^ { 2 } \mathrm { C } _ { 1 } \times { } ^ { 2 } \mathrm { C } _ { 1 } }