Question

A coin is tossed 10 times. The probability of getting exactly six heads is ______.

विकल्प

• `512/513`

• `105/512`

• `100/153`

• ¹⁰C₆

Answer 1

`105/512`

Explanation:

Probability of getting head is p = `1/2`

∴ q = 1 - p = 1 - `1/2 = 1/2`

Also, n = 10

∴ Required probability = P(X = 6)

`= "^10C_6 (1/2)^6 (1/2)^4`

`= 105/512`