Q1) Calculate the mean from

x	Frequency
10	105
11	100
12	75
13	135
14	55

[ mean =11.86]

Q1) Calculate the variance from

x	Frequency
09	70
10	100
11	85
12	60
13	120

[ var =2.096]

Q1) Calculate the Standard Deviation from

x	Frequency
09	110
10	95
11	110
12	70
13	125

[ Standard Deviation =1.472]

Q2) Calculate the mean from

x	Frequency
09	90
10	60
11	100
12	80
13	55

[ mean =10.87]

Q2) Calculate the variance from

x	Frequency
10	100
11	80
12	130
13	115
14	120

[ var =1.954]

Q2) Calculate the Standard Deviation from

x	Frequency
07	125
08	125
09	130
10	110
11	140

[ Standard Deviation =1.434]

Q3) Calculate the mean from

x	Frequency
07	145
08	70
09	65
10	100
11	60

[ mean =8.682]

Q3) Calculate the variance from

x	Frequency
06	85
07	145
08	95
09	140
10	70

[ var =1.687]

Q3) Calculate the Standard Deviation from

x	Frequency
10	65
11	50
12	110
13	65
14	145

[ Standard Deviation =1.426]

Q4) Calculate the mean from

x	Frequency
06	100
07	75
08	115
09	70
10	95

[ mean =7.967]

Q4) Calculate the variance from

x	Frequency
09	75
10	145
11	150
12	105
13	130

[ var =1.755]

Q4) Calculate the Standard Deviation from

x	Frequency
08	150
09	130
10	105
11	80
12	145

[ Standard Deviation =1.506]

Q5) Calculate the mean from

x	Frequency
08	50
09	125
10	85
11	105
12	95

[ mean =10.15]

Q5) Calculate the variance from

x	Frequency
09	65
10	125
11	95
12	65
13	130

[ var =2.000]

Q5) Calculate the Standard Deviation from

x	Frequency
05	75
06	110
07	105
08	145
09	120

[ Standard Deviation =1.347]