Q1) Calculate the mean from

x	Frequency
09	65
10	115
11	125
12	105
13	90

[ mean =11.08]

Q1) Calculate the variance from

x	Frequency
09	85
10	100
11	55
12	130
13	85

[ var =1.996]

Q1) Calculate the Standard Deviation from

x	Frequency
10	70
11	110
12	135
13	65
14	145

[ Standard Deviation =1.390]

Q2) Calculate the mean from

x	Frequency
06	150
07	135
08	110
09	125
10	100

[ mean =7.823]

Q2) Calculate the variance from

x	Frequency
09	105
10	85
11	75
12	125
13	110

[ var =2.130]

Q2) Calculate the Standard Deviation from

x	Frequency
05	110
06	55
07	100
08	80
09	80

[ Standard Deviation =1.449]

Q3) Calculate the mean from

x	Frequency
10	50
11	60
12	95
13	150
14	65

[ mean =12.29]

Q3) Calculate the variance from

x	Frequency
09	110
10	90
11	55
12	130
13	55

[ var =1.975]

Q3) Calculate the Standard Deviation from

x	Frequency
09	105
10	125
11	140
12	60
13	50

[ Standard Deviation =1.243]

Q4) Calculate the mean from

x	Frequency
05	110
06	140
07	145
08	80
09	135

[ mean =6.984]

Q4) Calculate the variance from

x	Frequency
10	50
11	60
12	135
13	105
14	50

[ var =1.400]

Q4) Calculate the Standard Deviation from

x	Frequency
07	135
08	80
09	100
10	115
11	65

[ Standard Deviation =1.402]

Q5) Calculate the mean from

x	Frequency
07	135
08	120
09	65
10	150
11	100

[ mean =8.930]

Q5) Calculate the variance from

x	Frequency
06	125
07	80
08	80
09	135
10	60

[ var =1.965]

Q5) Calculate the Standard Deviation from

x	Frequency
08	100
09	130
10	75
11	65
12	70

[ Standard Deviation =1.381]