Q1) Calculate the mean from

x	Frequency
07	75
08	85
09	95
10	120
11	95

[ mean =9.160]

Q1) Calculate the variance from

x	Frequency
05	150
06	85
07	110
08	55
09	75

[ var =2.046]

Q1) Calculate the Standard Deviation from

x	Frequency
06	55
07	100
08	100
09	90
10	130

[ Standard Deviation =1.368]

Q2) Calculate the mean from

x	Frequency
09	125
10	100
11	85
12	95
13	65

[ mean =10.73]

Q2) Calculate the variance from

x	Frequency
05	60
06	85
07	75
08	120
09	100

[ var =1.852]

Q2) Calculate the Standard Deviation from

x	Frequency
10	145
11	110
12	145
13	115
14	130

[ Standard Deviation =1.433]

Q3) Calculate the mean from

x	Frequency
05	50
06	80
07	80
08	135
09	90

[ mean =7.310]

Q3) Calculate the variance from

x	Frequency
07	105
08	80
09	70
10	135
11	135

[ var =2.190]

Q3) Calculate the Standard Deviation from

x	Frequency
06	140
07	85
08	60
09	80
10	120

[ Standard Deviation =1.574]

Q4) Calculate the mean from

x	Frequency
08	125
09	130
10	120
11	135
12	90

[ mean =9.892]

Q4) Calculate the variance from

x	Frequency
07	70
08	60
09	90
10	95
11	120

[ var =2.007]

Q4) Calculate the Standard Deviation from

x	Frequency
07	145
08	85
09	50
10	105
11	55

[ Standard Deviation =1.455]

Q5) Calculate the mean from

x	Frequency
10	150
11	140
12	70
13	80
14	75

[ mean =11.59]

Q5) Calculate the variance from

x	Frequency
09	85
10	105
11	70
12	115
13	135

[ var =2.110]

Q5) Calculate the Standard Deviation from

x	Frequency
10	50
11	135
12	105
13	150
14	50

[ Standard Deviation =1.182]