In a graduation program,1 1/2 hours are set aside for speakers. if the keynote speaker is given 1/4 hour, how long will each of the remaining 5 speakers have to give their speech?

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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?

Graph y = -|x| + 2. click on the graph until the correct one appears.