2. Suppose that people’s weights are normally distributed, with mean 175 pounds and a standard deviation of 6 pounds. Round to the nearest hundredth of a percent

Question

a. What percent of the population would weigh between 165 and 170 pounds?
b. What percent of the population would you expect to weigh more than 182 pounds?
c. What percent of the population would you expect to weigh between 172 and 180 pounds?
d. What percent of the population would you expect to be heavier than 163 pounds?

Answer 1

are you supposed to be using a table?

Here it is graphically..
http://davidmlane.com/hyperstat/z_table.html

Answer 2

that is all my worksheet says, im supposed to figure out the percent... not sure how to use the normal curve and im getting all messed up i don't know how to figure the percent