If the weight (in grams) of cereal in a box of lucky charms is n(479,4), what is the probability that the box will contain less than the advertised weight of 464 gm

about 8.8×10⁻⁵

Step-by-step explanation:

This probability is best found using a probability calculator of some sort. The z-score is ...

... (464-479)/4 = -3.75

You will have to search a bit to find a probability table that lists probability values for z-scores beyond ±3.00.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b