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Stemplots and Frequency Polygon

I need help with the following three problems and understanding how to do them. Here is the info used for the first two problems:

DATE ACTUAL HIGH
9/1 80
9/2 77
9/3 81
9/4 85
9/5 73
9/6 73
9/7 80
9/8 72
9/9 83
9/10 81
9/11 75
9/12 78
9/13 80
9/14 71
9/15 73
9/16 78
9/17 75
9/18 63
9/19 63
9/20 70
9/21 77
9/22 82
9/23 81
9/24 76
9/25 77
9/26 76
9/27 74
9/28 66
9/29 66
9/30 62
10/1 71
10/2 68
10/3 66
10/4 71
10/5 58

1. Use the 35 actual high temperatures to construct a stemplot. What does the stemplot suggest about the distribution of the temperatures?

2. Use the 35 actual high temperatures to construct a frequency polygon. For the horizontal axis, use the midpoint values obtained from these class intervals: 50-59, 60-69, 70-79, 80-89.

USE THE INFO LISTED BELOW FOR SOLVING #3.

3. Use the heights to construct a stemplot. What does the stemplot suggest about the distribution of the heights?

This info was collected from the measurements from eruptions of the Old Faithful Geyser. If I have not included enough info please message me and I will add the rest. Thanks.

Heights (ft)
140
140
148
130
125
110
136
125
115
120
120
120
150
140
136
120
148
130
130
136
130
115
136
130
138
120
120
120
95
140
125
130
130
110
110
125
150
130
120
95

Solution Summary

PDF, Word and Excel documents explain how to do frequency and stemplot problems.

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