A store finds that 65% of its customers pay with a credit card. If 3 customers check out, find the probability that all three of them use credit cards. (Give your answer in the form of a decimal, to at least three digits after the decimal point.)

If 65 out of a 100 customers pay with a credit card, then you got for each customer 65% chance that he or she will pay with a credit card. But if you have three customers, that chance is devided by 3. So then you get 21,667 %.

(If I am right.)

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

25/14 or 1.

step-by-step explanation:

the dots mean that it has infinitely more numbers behind it