Auto Save.OFF k), Rg. D D li\'. Homework 3(1) (10) a- Search Sheet Share InsertP
ID: 3044132 • Letter: A
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Auto Save.OFF k), Rg. D D li'. Homework 3(1) (10) a- Search Sheet Share InsertPage Layout Formulas Data Review View out Calibri 1Body) Copy Format B I Home AutoSum , Fill Clear Wrap Text Number Paste e & Center Conditional Format Cell Formatting as Table Styles Insert Delete Format Sort & Filter 122 0.01 Note: Answer Questions 5-11 by Using the Excel Output 47 Aecent Wall Street Journal aticle indicated that 47% of American teenagers use Pandora's online radio service Suppose a samplo of 25 American teenagers are selected. (See 4axercise 38 on page 249 in your textbook for similar problem.) Based on this information, ganerate a cumulative binomial probability distribution in the given space on the Pandora 49sheet in this workbock to answer the fellawine questions. Each orange numerical answer cel below MUST reference Excel output cels in the Pandora Sheet Quectian d the prelabillity that eactly 1 can 8 da not ne Pandora's anline radio service Pandera Quntion 11 Red the HWNotes HWExcelDirections Pandora Ready 80%Explanation / Answer
Solution:-
p = 0.47, n = 25
a) The probability that no less than 7 Americans use Pandora's online service is 0.98402.
x = 7
By applying binomial distribution
P(x,n) = nCx*px*(1-p)(n-x)
P(x > 7) = 0.98402.
b) The probability that exactly 14 Americans use Pandora's online service is 0.106.
x = 14
By applying binomial distribution
P(x,n) = nCx*px*(1-p)(n-x)
P(x = 14) = 0.106
c) The probability that number of Americans are differ by greater than 3 use is 0.1353.
E(x) = 25 × 0.47
E(x) = 11.75
x = 15
By applying binomial distribution
P(x,n) = nCx*px*(1-p)(n-x)
P(x > 15) = 0.1353
d) The probability that greater than 7 Americans use Pandora's online service is 0.9575.
x = 7
By applying binomial distribution
P(x,n) = nCx*px*(1-p)(n-x)
P(x > 7) = 0.9575
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