Question

You have a spinner that contains 2 As, 1 B, 1 C, 3 Es and 1 F. What is P(not A)? Remember to simplify.

Answer 1

P(not A) =
`(3)/(4)`

Explanation:

Number of alphabets A on the spinner = 2

Number of Bs on the spinner = 1

Number of Cs = 1

Number of Es = 3

Number of F = 1

Total number of alphabets on the spinner = 2 + 1 + 1 + 3 + 1

= 8

Probability P(for A) =
`\frac{\text{Favorable outcome}}{\text{Total outcomes}}`

=
`(2)/(8)`

=
`(1)/(4)`

Now the complement of P(not A) = 1 - P(A)

P(not A) =
`1-(1)/(4)`

=
`(3)/(4)`

Therefore, P(not A) =
`(3)/(4)` is the answer.