Question about data analysis

A WORKING WITH GROUPED DATA In order to group data, convenient intervals must be determined. General guidelines are: 1. Choose roughly 6 to 8 intervals, depending on what suits the data best 2. Each interval must have equal widths. 3, There must be no gaps between the intervals Highest value - Lowest Value Range of values me " Example 2:" " On the weekend, the OPP recorded the following speeds during a speed trap on the 401: 102 130 124 120 110 112 110 100 120 131 98 101 130 109 105 121 120 115 145 157 130 120 100 120 105 109 114 118 134 118 120 130 125 135 115 106 102 116 132 181 140 105 174 114 102 117 123 128 125 139 140 125 115 112 110 a) Construct a frequency table. Intervale Midpoint Tally Frequency Relative Frequency b) Construct a histogram and frequency polygon (use the same graph!)" MDM4U1 1.5 Data Analysis using Graphse 1-Var Stats L c) Construct a relative frequency polygon