I just started a new class, data analysis and business analytics, and I am extremely confused on my first assignment. It gives you the information of the number of days on the market for 36 home sales in the city of Sonando Hills.

I am given an Excel sheet and asked to construct a frequency distribution and histogram, using nice (round) bin limits.

Days on Market

lower 40 < upper 60

I figured out the midpoint of 50

I figured out the width of 20

But I am stuck on how to get the frequency and percent

Cumulative

I am stuck on how to get frequency

I am stuck on percent

I am given the following table of numbers:

149 80 80 104

53 23 20 81

3 133 66 126

88 32 46 117

32 37 57 36

107 137 66 177

10 2 29 82

46 127 147 52

56 24 63 94