Hi there!
Given P(A) = 98%
To find P(not A) we must first convert P(A) into a decimal. To find 98% as a decimal we only need to divide by 100.
[tex]98\% = 98 \div 100 = 0.98[/tex]
Now we know the following:
P(A) = 0.98. To find P(not A) we need to subtract P(A) from 1.
P(not A) = [tex] 1 - P(A) [/tex]
P(not A) = [tex]1 - 0.98 = 0.02[/tex]
Change into a percentage by multiplying the decimal by 100.
P(not A) = P(A') = [tex]0.02 \times 100 = 2\%[/tex]
Hope this helps you!
