A study indicates that 18-to 24-year olds spend a mean of 135 minutes watching video on their smartphones per month. Assume that the amount of time watching video on a smartphone per month is normally distributed and that the standard deviation is 10 minutes. What is the probability that an 18- to 24-year-old spends less than 130 minutes watching video on his or her smartphone per month? (please sh show me how you got the answer)

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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A study indicates that 18 to 24-year olds spend a mean of 135 minutes watching video on their smartphones per month. Assume that the
amount of time watching video on a smartphone per month is normally distributed and that the standard deviation is 10 minutes. What is the
probability that an 18- to 24-year-old spends less than 130 minutes watching video on his or her smartphone per month? (please show me
how you got the answer)
Transcribed Image Text:A study indicates that 18 to 24-year olds spend a mean of 135 minutes watching video on their smartphones per month. Assume that the amount of time watching video on a smartphone per month is normally distributed and that the standard deviation is 10 minutes. What is the probability that an 18- to 24-year-old spends less than 130 minutes watching video on his or her smartphone per month? (please show me how you got the answer)
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