Mathematics and Society - OS X Lion Server

(Materials Needed:Record player with variable speedsISeveral popular 333 albums, 45 singles and a 78 record (if available)Stopwatch or clock with a second handQuestions:How fast does a record turn?What do the speeds on a record player mean?1.IPlace a small marker on the outer edge of a 333 record album. SetIthe record player to 333 and carefully count the number of revolutionsthe marker makes in I minute.below and record the number.accuracy.Make a table like the oneRepeat the count two more times for(minute Iminute. 2.,Mlnu.te 3Nu.mbe.... Or"evolutionsFind the sum of the revolutions.Find the average by dividing the sum by 3.II. Repeat the activity again using a 45 record. Make atable.III. If you have a 78 record, repeat the activity again.IV.Place a small marker on the label ofIa 333 album.Repeat the activity. Find theaverage for the marker on the label.found in part I?How does this average compare to the average(266