With n=14 and p=0.3, find the binomial probability P(6) by using a binomial probability table.
P(6)=
(Round to the three decimal)
Also,
If np is greater than or equal to 5 and nq is greater than or equal to 5, estimate the indicated
probability by using the normal distribution as an approximation to the binomial.
Solution
for n=14 ,p=0.3,r=6 here r is the success here we want to calculate probability of
getting 6 success out of 14 trial having chance of success is 30 % in each trial so using binomial
distribution p(6)= 14C6 *p^6*(1-p)^(14-6)= 14C6*p^6*(1-p)^8 = 14C6*(0.3)^6*(0.70)^8
P(6)=0.126202 ( using table) np=14*0.3=4.2<5 nq=14*0.7=9.8>5.
with the answer rounded to four decimals a horse race has 13 entrie.pdf
1. with the answer rounded to four decimals: a horse race has 13 entries. assuming there are no ties,
what is the probability that the five horses owned by one person finish first, second, third, fourth
and fifth?
Solution
(5 / 13) * (4 / 12) * (3 / 11) * (2 / 10) * (1 / 9) = .0008
