Q1) Calculate the mean from

x	Frequency
05	70
06	75
07	50
08	70
09	70

[ mean =6.985]

Q1) Calculate the variance from

x	Frequency
10	85
11	85
12	105
13	140
14	55

[ var =1.670]

Q1) Calculate the Standard Deviation from

x	Frequency
08	90
09	150
10	135
11	50
12	140

[ Standard Deviation =1.408]

Q2) Calculate the mean from

x	Frequency
06	125
07	95
08	70
09	60
10	70

[ mean =7.655]

Q2) Calculate the variance from

x	Frequency
07	80
08	95
09	65
10	80
11	105

[ var =2.146]

Q2) Calculate the Standard Deviation from

x	Frequency
08	120
09	145
10	110
11	115
12	150

[ Standard Deviation =1.446]

Q3) Calculate the mean from

x	Frequency
10	135
11	130
12	85
13	85
14	120

[ mean =11.86]

Q3) Calculate the variance from

x	Frequency
09	140
10	65
11	95
12	120
13	55

[ var =1.973]

Q3) Calculate the Standard Deviation from

x	Frequency
06	125
07	125
08	80
09	110
10	145

[ Standard Deviation =1.499]

Q4) Calculate the mean from

x	Frequency
07	60
08	50
09	135
10	150
11	120

[ mean =9.427]

Q4) Calculate the variance from

x	Frequency
10	55
11	120
12	55
13	65
14	150

[ var =2.166]

Q4) Calculate the Standard Deviation from

x	Frequency
08	130
09	130
10	70
11	85
12	115

[ Standard Deviation =1.495]

Q5) Calculate the mean from

x	Frequency
07	75
08	60
09	110
10	50
11	85

[ mean =9.026]

Q5) Calculate the variance from

x	Frequency
07	125
08	85
09	150
10	150
11	50

[ var =1.647]

Q5) Calculate the Standard Deviation from

x	Frequency
05	85
06	110
07	90
08	125
09	100

[ Standard Deviation =1.380]