Btec: Statistics Ungrouped Data

## Difficult

Q1) Calculate the mean from

_x_| Frequency
05 | 65
06 | 145
07 | 140
08 | 95
09 | 110

Q1) Calculate the variance from

_x_| Frequency
07 | 120
08 | 140
09 | 125
10 | 95
11 | 140

Q1) Calculate the Standard Deviation from

_x_| Frequency
09 | 115
10 | 80
11 | 145
12 | 145
13 | 75

Q2) Calculate the mean from

_x_| Frequency
08 | 110
09 | 50
10 | 115
11 | 50
12 | 80

Q2) Calculate the variance from

_x_| Frequency
08 | 55
09 | 110
10 | 80
11 | 150
12 | 75

Q2) Calculate the Standard Deviation from

_x_| Frequency
07 | 95
08 | 65
09 | 110
10 | 105
11 | 115

Q3) Calculate the mean from

_x_| Frequency
06 | 60
07 | 90
08 | 70
09 | 140
10 | 95

Q3) Calculate the variance from

_x_| Frequency
08 | 85
09 | 80
10 | 90
11 | 140
12 | 105

Q3) Calculate the Standard Deviation from

_x_| Frequency
07 | 80
08 | 55
09 | 150
10 | 65
11 | 80

Q4) Calculate the mean from

_x_| Frequency
09 | 110
10 | 145
11 | 145
12 | 75
13 | 130

Q4) Calculate the variance from

_x_| Frequency
05 | 75
06 | 75
07 | 110
08 | 110
09 | 100

Q4) Calculate the Standard Deviation from

_x_| Frequency
06 | 125
07 | 60
08 | 135
09 | 75
10 | 70

Q5) Calculate the mean from

_x_| Frequency
06 | 140
07 | 140
08 | 60
09 | 105
10 | 130

Q5) Calculate the variance from

_x_| Frequency
05 | 120
06 | 60
07 | 65
08 | 125
09 | 150

Q5) Calculate the Standard Deviation from

_x_| Frequency
06 | 105
07 | 60
08 | 85
09 | 65
10 | 65