Suppose the proportion of all college students who have used marijuana in the past 6 months is p = 0.40. in a class of 200 students that are representative of all college students, would it be unusual for the proportion who have used marijuana in the past 6 months to be less than 0.32? a. yes. b. no. c. cannot be determined.

Use the information given below, to compare the cost of operating two different vehicles for one month (4 weeks) you are considering two different cars. you drive to work, a 20 mile round trip, five days a week. gasoline costs you $1.50 per gallon car agets 28 miles per gallon, would have $300 a year in maintenance costs, and would cost you $1,500 per year to insure car b gets 19 miles per gallon, would have $500 a year in maintenance costs, and would cost you $1,000 per year to insure costs car a car b gas cost per month insurance cost per month maintenance cost per month $ total cost per month

By january 2014 the us population had grown to 317.3 million and the us federal debt was a reported $17.3 trillion. calculate the january 2014 federal debt per capita. (round to the hundredths place)

There were 32 volunteers to donate blood. unfortunately, nn of the volunteers did not meet the health requirements, so they couldn't donate. the rest of the volunteers donated 470 milliliters each.