First slide

Theorems of probability

Question

The sum of two positive numbers is 10. The probability that their product is greater than 15 is

Easy

A

_{$\frac{1}{5}$}
B

_{$\frac{3}{5}$}
C

_{$\frac{4}{5}$}
D

_{$\frac{2}{5}$}

Solution

$S = \{(1, 9), (2, 8), (3, 7), (4, 6), (5, 5)\} E = \{(2, 8), (3, 7), (4, 6), (5, 5)\} P (E) = \frac{n (E)}{n (S)} = \frac{4}{5}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App