Question

Please Help...Statistics!
52% of men consider themselves professional baseball fans. You randomly select 10 men & ask each if he considers himself a professional baseball fan.
Find the probability that the number who consider themselves baseball fan is
a) exactly 8
b) at least 8
c) less than 8
If convenient use technology to find the probabilities.

Answer 1

a) The binomial distribution applies. The probability of exactly 8 fans out of 10 is:
\[P(8:10)=\left(\begin{matrix}10 \\ 8\end{matrix}\right)\times (0.52)^{8}\times (0.48)^{2}\]
What is your answer?

Answer 2

Do you need help with the calculation?

Answer 3

@Solunus Are you there?

Answer 4

yeah, that's it. way better at this stuff than I.

Answer 5

\[\left(\begin{matrix}10 \\ 8\end{matrix}\right)=\frac{10\times 9}{2}=45\]
So the calculation is as follows:
\[45\times (0.52)^{8}\times (0.48)^{2}=?\]