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need help with this 10. The average number of minutes per week that teenagers spend texting is 240.0. Assume the standard deviation is 72.0 minutes.

need help with this
10. The average number of minutes per week that teenagers spend texting is 240.0. Assume the standard deviation is 72.0 minutes. A random sample of E4 teenagers is taken. Find the probabiiity that the mean number of minutes teenagers in this sample spend reading books is bemeen 230.0 and 250.0

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