Nasser wants to find an estimate for the number of birds in a bird sanctuary. One day he catches 80 birds and puts a non-harmful tag on each.
He then releases the birds back into the sanctuary.
The next day Nasser catches 60 birds and 15 of these birds have a tag on them.
Work out an estimate for the total number of birds in the bird sanctuary.

Closing a credit card usually _your debt ratio. a. increasesb. decreasesc. improvesd. has no effect on

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes

Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?