Which expression is equal to 3/4? 3 - 4, 4 - 3, 3 divided by 4 or.. 4 divided by 3 ?

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Charlie tosses five coins.what is the probability that all five coins will land tails up.