30% of the 30 marbles is nine and 9-30 = 21 so your answer is 21
Answer:
Ramona’s annual premium is $1725.
Step-by-step explanation:
($690) X 2 X 1.25 = $1725.
Answer:
(a) 20 ways
(b) 0.05 or 5%
Step-by-step explanation:
(a) Assuming that the order in which people are chosen does not matter, the number of ways to select 3 people out of possible 6 is given by the following combination.

(b) In a random sampling procedure, every outcome is just as likely to occur. Therefore, the chances that any particular sample will be the one selected are:
