SOLUTION: Mr. Butts smoked 15 cigarettes per day. Whats the probability a smoker will smoke less than Mr. Butts. mean = 11. standard deviation = 5
Algebra ->
Probability-and-statistics
-> SOLUTION: Mr. Butts smoked 15 cigarettes per day. Whats the probability a smoker will smoke less than Mr. Butts. mean = 11. standard deviation = 5
Log On
Question 367316: Mr. Butts smoked 15 cigarettes per day. Whats the probability a smoker will smoke less than Mr. Butts. mean = 11. standard deviation = 5 Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Mr. Butts smoked 15 cigarettes per day. Whats the probability a smoker will smoke less than Mr. Butts. mean = 11. standard deviation = 5
-------------------------------------------
z(15) = (15-11)/5 = 0.8
-----
P(x<15) = P(z<0.8) = 0.7881
==============
Cheers,
Stan H.
(