Suppose a bowler claims that her bowling score is not equal to 150 points, on average. several of her teammates do not believe her, so the bowler decides to do a hypothesis test, at a 5% significance level, to persuade them. she bowls 22 games. the mean score of the sample games is 157 points. the bowler knows from experience that the standard deviation for her bowling score is 18 points.

answer: idk

step-by-step explanation: sry idk

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.

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

step-by-step explanation: