Concept explainers
A Nielsen study indicates that 18-to 34-year olds spend a mean of 93 minutes watching video on their smartphones per week.
Assume that the amount of time watching video on a smartphone per week is
a. What is the probability that an 18- to 34-year-old spends less than 77 minutes watching video on his or her smartphone per week?
b. What is the probability that an 18-to 34-year -old spends between 77 minutes and 109 minutes video on his or her smartphone per week?
c. What is the probability that an 18-to 34-year -old spends more than 109 minutes watching video on his or her smartphone per week?
d. One percent of all 18- to 34-year- olds will spend less than how many minutes watching video on her smartphone per week?
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Basic Business Statistics, Student Value Edition
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillCalculus For The Life SciencesCalculusISBN:9780321964038Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.Publisher:Pearson Addison Wesley,Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt