There are 11 people in a group. Four of them are selected to be on a panel. If John is in the group, what is the probability he won't be selected to be on the panel?

Step-by-step explanation:

Probability is defined as the likelihood of an event occurring.

-The probability of being selected is :

-The probability of not being selected is :

Hence, the probability of John not being selected is

1/4 and 8/3 because:

the reciprocal if 4 is 1/4 because 4 is used as 4/1 and the opposite of that is 1/4. the opposite of 3/8 is 8/3 so that is the answer.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225