Q1) Calculate the mean from

x	Frequency
09	125
10	90
11	125
12	135
13	120

[ mean =11.06]

Q1) Calculate the variance from

x	Frequency
05	130
06	100
07	115
08	55
09	65

[ var =1.869]

Q1) Calculate the Standard Deviation from

x	Frequency
06	110
07	60
08	60
09	70
10	90

[ Standard Deviation =1.542]

Q2) Calculate the mean from

x	Frequency
09	55
10	55
11	145
12	65
13	115

[ mean =11.30]

Q2) Calculate the variance from

x	Frequency
06	100
07	90
08	105
09	95
10	60

[ var =1.806]

Q2) Calculate the Standard Deviation from

x	Frequency
08	90
09	130
10	60
11	140
12	50

[ Standard Deviation =1.321]

Q3) Calculate the mean from

x	Frequency
06	80
07	50
08	140
09	150
10	140

[ mean =8.393]

Q3) Calculate the variance from

x	Frequency
07	50
08	65
09	85
10	135
11	140

[ var =1.744]

Q3) Calculate the Standard Deviation from

x	Frequency
05	55
06	120
07	60
08	145
09	70

[ Standard Deviation =1.298]

Q4) Calculate the mean from

x	Frequency
07	75
08	130
09	150
10	85
11	150

[ mean =9.178]

Q4) Calculate the variance from

x	Frequency
10	120
11	105
12	125
13	130
14	150

[ var =2.069]

Q4) Calculate the Standard Deviation from

x	Frequency
08	120
09	120
10	120
11	80
12	80

[ Standard Deviation =1.367]

Q5) Calculate the mean from

x	Frequency
09	85
10	85
11	95
12	145
13	75

[ mean =11.08]

Q5) Calculate the variance from

x	Frequency
08	120
09	85
10	125
11	50
12	70

[ var =1.899]

Q5) Calculate the Standard Deviation from

x	Frequency
05	125
06	90
07	60
08	140
09	130

[ Standard Deviation =1.510]