In a concert band the probability that a member is in the woodwind section is 0.40. The probability that a member plays clarinet, given that he or she is in the woodwind section, is 50. What is the probability that a randomly selected band member is in the woodwind section and plays clarinet?

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?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

What is the slope of the line that contains the points (-2,1) and (0,-3)