You estimate that 200 people attended a school concert. the actual attendance was 240 people.

a. find the percent error to the nearest tenth of a percent.
the percent error is about
%.

question 2
b. what other estimate gives the same percent error? explain your reasoning.
to get the same percent error, the amount of error needs to be . because your estimate was people below the actual attendance, an estimate of the actual attendance will give the same percent error. therefore, the other estimate that gives the same percent error is an estimate of people.

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.