Answer:
second option
Step-by-step explanation:

The answer is the first one BC ~ CD
Ok done. Thank to me:>
So if boys is 6 and girls is 15 it would be 6/15, but that can be simplified to 2/5.
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
=
=
Formula used:
P(X=r) =
Answer:
0.444... (or 44.44...%)
Step-by-step explanation:
The experimental probability is the probability of an event actually happening. The experimental probability of a man having a beard here is 44.444...% (8/18).