Q1) Calculate the mean from

x	Frequency
09	135
10	75
11	80
12	90
13	105

[ mean =10.91]

Q1) Calculate the variance from

x	Frequency
06	125
07	150
08	80
09	145
10	65

[ var =1.818]

Q1) Calculate the Standard Deviation from

x	Frequency
10	65
11	90
12	105
13	50
14	70

[ Standard Deviation =1.335]

Q2) Calculate the mean from

x	Frequency
10	135
11	105
12	65
13	120
14	55

[ mean =11.70]

Q2) Calculate the variance from

x	Frequency
10	130
11	140
12	110
13	140
14	140

[ var =2.060]

Q2) Calculate the Standard Deviation from

x	Frequency
08	140
09	75
10	110
11	60
12	115

[ Standard Deviation =1.514]

Q3) Calculate the mean from

x	Frequency
05	70
06	125
07	70
08	65
09	50

[ mean =6.737]

Q3) Calculate the variance from

x	Frequency
08	80
09	95
10	105
11	80
12	110

[ var =1.980]

Q3) Calculate the Standard Deviation from

x	Frequency
05	90
06	95
07	140
08	105
09	115

[ Standard Deviation =1.364]

Q4) Calculate the mean from

x	Frequency
09	120
10	65
11	145
12	70
13	55

[ mean =10.73]

Q4) Calculate the variance from

x	Frequency
06	120
07	80
08	55
09	95
10	105

[ var =2.362]

Q4) Calculate the Standard Deviation from

x	Frequency
06	85
07	95
08	105
09	60
10	75

[ Standard Deviation =1.370]

Q5) Calculate the mean from

x	Frequency
07	130
08	140
09	80
10	145
11	85

[ mean =8.853]

Q5) Calculate the variance from

x	Frequency
05	80
06	100
07	145
08	70
09	60

[ var =1.581]

Q5) Calculate the Standard Deviation from

x	Frequency
05	130
06	55
07	80
08	135
09	55

[ Standard Deviation =1.421]