You are dealt one card from a 52card deck Find the probabili

You are dealt one card from a 52-card deck. Find the probability that you are not dealt a card with a number from 7 to 9.

Solution

7 , 8 , 9 : Three numbers

There are total 4*3=12 cards with number from 7 to 9.

So Cards with number not from 7 to 9 =52-12=40

Probability that you are not dealt a card with a number from 7 to 9= 40/52

P=0.769230769

P =0.77