1. At a particular high school, the average ACT score is 28 with a standard deviation of 3.2. Find the probability that

[answerhappygod]

1. At a particular high school, the average ACT score is
28 with a standard deviation of 3.2.
Find the probability that a randomly selected student from this
school scored between a 25 and a 30.
2. A chip-bagging company wants to fill their bags
with at least 8 ounces of chips. To ensure that their bags have at
least 8 ounces, they set their filling machine to have a mean
filling[1]weight of 8.26 ounces. If the company wants there to be a
99% chance that a bag of chips has at least 8 ounces,
a) What should the standard deviation of the filling machine
be?
3. Of the 1,606 pounds of garbage generated by the
average individual, 850 pounds will end up in a landfill. Suppose
the amount of garbage is normally distributed with a
standard
deviation of 160 pounds. Find the probability that a randomly
selected individual generates