The volumes of soda in quart soda bottles are normally distributed with a mean of 32 ounces and a standard deviation of 1.2 ounces. what percentage of soda bottles will have a volume less than 31.46 ounces

32.64%

Step-by-step explanation:

Let's define the random variable X in the following way:

X: the volume of a soda in a quart soda bottle. We know that X is normally distributed with a mean of 32 ounces and a standard deviation of 1.2 ounces, i.e.,

= 32 ounces

= 1.2 ounces

The normal density function for a random variable with a mean of 32 and a standard deviation of 1.2 is given by

and we need to calculate the following probability

, this probability is given by

= 0.3263552

you can use a computer to calculate this probability or a table from a book. You can use the following instruction in the R statistical programming language for example

pnorm(31.46, mean = 32, sd = 1.2)  with give us 0.3263552, then,

the percentage we are looking for is (0.3263552)(100)=32.64.

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step-by-step explanation:

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