SOLUTION: I am not sure how to begin to solve this intermediate calculation.
According to a recent survey, 25% of college students use a smartphone. You randomly select 15 college studen
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-> SOLUTION: I am not sure how to begin to solve this intermediate calculation.
According to a recent survey, 25% of college students use a smartphone. You randomly select 15 college studen
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Question 1091422: I am not sure how to begin to solve this intermediate calculation.
According to a recent survey, 25% of college students use a smartphone. You randomly select 15 college students and ask if they use a smartphone. The probability that exactly 3 students in your sample use a smartphone is calculated using the following formula;
p=0.25 cubed x 0.75 to the twelfth x 455
to calculate the value of p, you perform a series of calculations, which of the above results should not be rounded. Solve for p. Round to the two decimal places.
You can put this solution on YOUR website! This is a binomial probability computation
nCp(p)^x(1-p)^n-x
Use the problem above
15C3*0.25^3*0.75^12
15C3=455
455*0.25^3*0.75^12=0.2252 or 0.23