the table shows the blood types of 75 donors after a one-day blood drive. based on the results, what is the chance that a random donor has type A blood?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Evaluate the expression. (9 + 5)(3 + 2)0

Of the 304 people who attended a school play, 5/8 were students. how many of the people who attended were students.