Which of the following could be graph of the function f defined by f(x)=2x

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

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?

Which of the following statements is a true conclusion that can be made from the scaled bargraph?