Question

Margie is practicing for an upcoming tennis tournament. Her first serve is good 20 out of 30 times on average. Margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. How could she design a simulation for this scenario?

Answer 1

Answer:

0.6804

Step-by-step explanation:

Given that Margie is practicing for an upcoming tennis tournament. Her first serve is good 20 out of 30 times on average.

Since each trial is independent and there are two outcomes, X no of good serves is binomial with n=6 and p =2/3

Required probability

= Prob that atleast four of 6 times good serve

=$P(X\geq 4)$

=$P(x=4,5 or 6)\\=1-F(3)\\=0.6804$

Formula used:

P(X=r) =$6Cr (\frac{2}{3}^r )(\frac{1}{3}^{6-r} )$

Answer 2

What even does the other guy mean that didnt help at all.