Q1) Calculate the mean from

x	Frequency
08	75
09	70
10	120
11	130
12	110

[ mean =10.26]

Q1) Calculate the variance from

x	Frequency
07	80
08	115
09	95
10	90
11	125

[ var =2.013]

Q1) Calculate the Standard Deviation from

x	Frequency
10	135
11	110
12	120
13	130
14	95

[ Standard Deviation =1.398]

Q2) Calculate the mean from

x	Frequency
08	125
09	90
10	50
11	70
12	85

[ mean =9.762]

Q2) Calculate the variance from

x	Frequency
09	145
10	140
11	125
12	130
13	65

[ var =1.756]

Q2) Calculate the Standard Deviation from

x	Frequency
05	125
06	120
07	95
08	75
09	130

[ Standard Deviation =1.492]

Q3) Calculate the mean from

x	Frequency
07	75
08	90
09	150
10	90
11	95

[ mean =9.080]

Q3) Calculate the variance from

x	Frequency
09	150
10	60
11	90
12	100
13	90

[ var =2.259]

Q3) Calculate the Standard Deviation from

x	Frequency
05	135
06	50
07	130
08	50
09	70

[ Standard Deviation =1.423]

Q4) Calculate the mean from

x	Frequency
09	140
10	135
11	135
12	110
13	70

[ mean =10.72]

Q4) Calculate the variance from

x	Frequency
05	105
06	65
07	150
08	80
09	150

[ var =2.082]

Q4) Calculate the Standard Deviation from

x	Frequency
05	140
06	140
07	150
08	100
09	125

[ Standard Deviation =1.405]

Q5) Calculate the mean from

x	Frequency
05	55
06	55
07	65
08	95
09	75

[ mean =7.232]

Q5) Calculate the variance from

x	Frequency
08	60
09	140
10	150
11	60
12	50

[ var =1.344]

Q5) Calculate the Standard Deviation from

x	Frequency
05	150
06	125
07	85
08	90
09	60

[ Standard Deviation =1.375]