1. Suppose the 25th percentile of pulse rates for adult males is 64 beats per minute. What percent of men have a pulse rate below 64 beats per minute?
2. Maria takes a census and determines the average weight of the elephants at the National Zoo is 2.7 short ton. Write this as an equation.
3. Of 1000 people observed during the weekend at BJs sampling station, 750 people opted to taste-test the sample. What percent chose not to taste- test?
4. What is the difference between and s ?
5. What is the difference between and N ?

6 What is the difference between and ?