Q1) Calculate the mean from

x	Frequency
09	125
10	85
11	125
12	65
13	130

[ mean =10.98]

Q1) Calculate the variance from

x	Frequency
05	130
06	55
07	50
08	50
09	110

[ var =2.683]

Q1) Calculate the Standard Deviation from

x	Frequency
09	55
10	60
11	150
12	150
13	90

[ Standard Deviation =1.210]

Q2) Calculate the mean from

x	Frequency
06	135
07	65
08	75
09	60
10	115

[ mean =7.900]

Q2) Calculate the variance from

x	Frequency
09	130
10	70
11	65
12	75
13	60

[ var =2.149]

Q2) Calculate the Standard Deviation from

x	Frequency
06	130
07	125
08	75
09	145
10	115

[ Standard Deviation =1.455]

Q3) Calculate the mean from

x	Frequency
10	95
11	90
12	60
13	70
14	130

[ mean =12.11]

Q3) Calculate the variance from

x	Frequency
08	110
09	50
10	130
11	120
12	120

[ var =2.028]

Q3) Calculate the Standard Deviation from

x	Frequency
05	70
06	90
07	70
08	65
09	95

[ Standard Deviation =1.444]

Q4) Calculate the mean from

x	Frequency
09	140
10	145
11	85
12	55
13	85

[ mean =10.61]

Q4) Calculate the variance from

x	Frequency
05	120
06	55
07	135
08	100
09	60

[ var =1.836]

Q4) Calculate the Standard Deviation from

x	Frequency
07	65
08	85
09	50
10	60
11	55

[ Standard Deviation =1.401]

Q5) Calculate the mean from

x	Frequency
08	130
09	115
10	130
11	130
12	65

[ mean =9.798]

Q5) Calculate the variance from

x	Frequency
10	100
11	75
12	95
13	60
14	150

[ var =2.333]

Q5) Calculate the Standard Deviation from

x	Frequency
08	100
09	90
10	70
11	85
12	50

[ Standard Deviation =1.375]