500
An investigator interested in finger-tapping behavior conducts the following study: Students are asked to tap as fast as they can with their ring finger. The hand is cupped and all fingers except the one being tapped are placed on the surface. Either the right or the left hand is used, at the preference of the student. At the end of 15 seconds, the number of taps for each student is recorded. Example data using 18 subjects are presented below:
Finger-taps in Fifteen Seconds for Eighteen Individuals
53 35 67 48 63 42 48 55 33 50 46 45 59 40 47 51 66 53
Make a frequency table.