Question

21) The probability that a tennis set will go to a tie-breaker is What is the probability that 3 or ten sets to tie-breakers? (Round to the second decimal place) A) 0.20 B) 0.22 C) 0.27 D) 0.15 22) Thirty percent of voters think that Congress should help write standards for school food. You randomly se eight voters represents the number of voters who think that Congress should help write standards for school food. Graph t and ask them whether Congress should help write standards for school food. The random variable binomial distribution using a histogram and describe its shape.

Answer 1

n = 8 , p = 0.30

${\displaystyle f(k,n,p)=\Pr(k;n,p)=\Pr(X=k)={n \choose k}p^{k}(1-p)^{n-k}}$

x	p
0	0.057648
1	0.19765
2	0.296475
3	0.254122
4	0.136137
5	0.046675
6	0.010002
7	0.001225
8	6.56E-05