Question 1115319
a) Mean, sum all the values and divide by the number of values,
{{{mu=(37.2+36+34.6+27.2+14.3+12+11.6+9.7+9.2+8.3)/10}}}
b) Median is the middle value. Since there are an even number of values, average the 5th and 6th values,
{{{M=(14.3+12)/2}}}
c) Mode is the value that occurs most often. 
Since no values repeat there is no mode.
d)Midrange is the average of the least and greatest values,
{{{MR=(37.2+8.3)/2}}}