9709 P52 - Mar 2023 - Q1
2444
Each year the total number of hours, \(x\), of sunshine in Kintoo is recorded during the month of June. The results for the last 60 years are summarised in the table.
| \(x\) | 30 \(\leq x <\) 60 | 60 \(\leq x <\) 90 | 90 \(\leq x <\) 110 | 110 \(\leq x <\) 140 | 140 \(\leq x <\) 180 | 180 \(\leq x <\) 240 |
|---|---|---|---|---|---|---|
| Number of years | 4 | 8 | 14 | 25 | 7 | 2 |
Calculate an estimate for the mean number of hours of sunshine in Kintoo during June over the last 60 years.
