Q1) Calculate the mean from

x	Frequency
05	150
06	150
07	65
08	115
09	80

[ mean =6.688]

Q1) Calculate the variance from

x	Frequency
06	130
07	115
08	130
09	120
10	90

[ var =1.890]

Q1) Calculate the Standard Deviation from

x	Frequency
10	100
11	130
12	140
13	85
14	140

[ Standard Deviation =1.404]

Q2) Calculate the mean from

x	Frequency
05	50
06	70
07	55
08	50
09	85

[ mean =7.161]

Q2) Calculate the variance from

x	Frequency
05	105
06	70
07	55
08	115
09	135

[ var =2.338]

Q2) Calculate the Standard Deviation from

x	Frequency
10	150
11	80
12	85
13	80
14	140

[ Standard Deviation =1.570]

Q3) Calculate the mean from

x	Frequency
06	50
07	85
08	115
09	50
10	65

[ mean =7.986]

Q3) Calculate the variance from

x	Frequency
07	145
08	80
09	100
10	135
11	65

[ var =1.970]

Q3) Calculate the Standard Deviation from

x	Frequency
09	75
10	115
11	110
12	135
13	110

[ Standard Deviation =1.338]

Q4) Calculate the mean from

x	Frequency
10	120
11	150
12	85
13	150
14	50

[ mean =11.75]

Q4) Calculate the variance from

x	Frequency
10	125
11	130
12	115
13	115
14	85

[ var =1.876]

Q4) Calculate the Standard Deviation from

x	Frequency
06	100
07	90
08	90
09	60
10	100

[ Standard Deviation =1.468]

Q5) Calculate the mean from

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

[ mean =10.79]

Q5) Calculate the variance from

x	Frequency
06	65
07	95
08	75
09	125
10	150

[ var =1.964]

Q5) Calculate the Standard Deviation from

x	Frequency
10	70
11	150
12	125
13	70
14	110

[ Standard Deviation =1.338]