Twenty students participated in a psychology experiment which measured their heart rates in two different situations.

a. What are the appropriate measures of center and variability to use with the data? Select all that

apply for the data above.

-mean

-median

-mode

-IQR

-range

-standard deviation

and explain why

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes

Which of the following is an equation of a line parallel to the equation y=4x+1?