1. Given the data on the ages of audience in a certain Variety show, find the range, variance, standard deviation, and the coefficient of variation.
30, 25, 7, 40, 15, 36, 27, 35, 48, 10, 20, 28, 33, 45, 10
2. Given the following FDT on the weights of mangoes sold by 40 producers in a certain province, solve the range, variance, standard deviation and the coefficient of variation.
3. Given the age distribution of the farmers in Pangasinan.
a. Find the mean age and the variability of the ages of farmers.
b. Prepare a frequency histogram.
c. Give a brief interpretation of the graph considering the measures of location and variability.
30, 25, 7, 40, 15, 36, 27, 35, 48, 10, 20, 28, 33, 45, 10
2. Given the following FDT on the weights of mangoes sold by 40 producers in a certain province, solve the range, variance, standard deviation and the coefficient of variation.
| CI | f |
| 110 – 114 | 2 |
| 115 – 119 | 10 |
| 120 – 124 | 18 |
| 125 – 129 | 6 |
| 130 – 134 | 4 |
| Total | 40 |
3. Given the age distribution of the farmers in Pangasinan.
| Age (years) | Frequency | TCB | Class mark |
| 16 – 26 | 2 | 15.5 – 26.5 | 21 |
| 27 – 37 | 10 | 26.5 – 37.5 | 32 |
| 38 – 48 | 19 | 37.5 – 48.5 | 43 |
| 49 – 59 | 27 | 48.5 – 59.5 | 54 |
| 60 - 70 | 25 | 59.5 – 70.5 | 65 |
| 71 – 81 | 16 | 70.5 – 81.5 | 76 |
| 82 – 92 | 1 | 81.5 – 92.5 | 87 |
| Total | | | |
a. Find the mean age and the variability of the ages of farmers.
b. Prepare a frequency histogram.
c. Give a brief interpretation of the graph considering the measures of location and variability.