Q1) Calculate the mean from

x	Frequency
07	150
08	85
09	105
10	100
11	95

[ mean =8.822]

Q1) Calculate the variance from

x	Frequency
06	145
07	105
08	110
09	55
10	70

[ var =1.933]

Q1) Calculate the Standard Deviation from

x	Frequency
05	100
06	75
07	70
08	60
09	105

[ Standard Deviation =1.526]

Q2) Calculate the mean from

x	Frequency
06	120
07	135
08	130
09	135
10	150

[ mean =8.090]

Q2) Calculate the variance from

x	Frequency
06	65
07	55
08	135
09	100
10	95

[ var =1.712]

Q2) Calculate the Standard Deviation from

x	Frequency
09	120
10	55
11	115
12	55
13	110

[ Standard Deviation =1.504]

Q3) Calculate the mean from

x	Frequency
06	75
07	130
08	90
09	65
10	120

[ mean =8.052]

Q3) Calculate the variance from

x	Frequency
09	55
10	65
11	115
12	120
13	110

[ var =1.691]

Q3) Calculate the Standard Deviation from

x	Frequency
06	85
07	50
08	60
09	135
10	135

[ Standard Deviation =1.460]

Q4) Calculate the mean from

x	Frequency
06	95
07	105
08	50
09	130
10	105

[ mean =8.093]

Q4) Calculate the variance from

x	Frequency
09	70
10	70
11	85
12	65
13	115

[ var =2.116]

Q4) Calculate the Standard Deviation from

x	Frequency
10	125
11	50
12	80
13	140
14	100

[ Standard Deviation =1.482]

Q5) Calculate the mean from

x	Frequency
08	150
09	110
10	125
11	140
12	115

[ mean =9.938]

Q5) Calculate the variance from

x	Frequency
09	80
10	150
11	75
12	130
13	100

[ var =1.868]

Q5) Calculate the Standard Deviation from

x	Frequency
07	150
08	70
09	95
10	80
11	105

[ Standard Deviation =1.521]