1. x Dx
23 10
24 9
28 5
35 2
39 6
49 16
33 8

2. X frequency (f)
FX Dx fdx
1 23 23 2.89 66.36
3 45 135 0.89 39.84
5 32 160 1.11 35.67
7 21 147 3.11 65.41
9 1 9 5.11 5.11
122 474 212.39
3.89 1.74

3. X Frequencyf
range mid value
Less than 50 840-50 8 45
less than 60 2050 - 60 12 55
less than 70 4060-70 20 65
less than 80 5070 -80 10 75
50

4. value

5. x Dx
52 18
56 14
68 2
70 0
75 5
80 10
82 12
61
8.71

6. X F
12 2 ### 4.56
2 12 24 ### 15.34
3 23 69 ### 6.41
4 15 60 ### 10.82
59 45 ### 15.49
61 200 52.62
3.28 0.86