Question

The probability for a randomly chosen month to have its ${10}^{th}$ day as Sunday, is.

• A. $\frac{1}{84}$
• B. $\frac{10}{12}$
• C. $\frac{10}{84}$
• D. $\frac{1}{7}$

Answer 1

The correct option is A $\frac{1}{84}$

Prob. of choosing a month $=\frac{1}{12}$

Prob. of choosing a day of week (Sunday) $=\frac{1}{7}$

Prob. for a randomly chosen month to have its ${10}^{th}$ day as Sunday $=\frac{1}{12}\times \frac{1}{7}$

$=\frac{1}{84}$