the volumes of soda in a bottle are marketed as 20 ounces but are actually normally...
the volumes of soda in a bottle are marketed as 20 ounces but are actually normally distributed with mean 19.8 oz and a standard deviation of 1.2 oz. what is the probability that the volume of soda in a randomly selected bottle will be less than 20 oz?
Homework Answers
Solution :
Given that ,
mean = 
= 19.8 oz
standard deviation = 
= 1.2 oz
P(x < 20 ) = P((x -
) /
< ( 20 - 19.8 ) /1.2 )
= P(z < 0.17)
= 0.5675 Using standard normal table,
P(x < 20) = 0.5675
Probability = 0.5675
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