12. The temperature (7°C) at noon at a seaside resort was recorded for a penod of 60 days The table shows some of this information
Temperature (7°C)
Number of days
10 <T 14
2
14 < T S 18
8
18 <T S 22
14
22 <T S26
23
26 < T S 30
9
30 < T S 34
4
Calculate an estimate for the mean temperature at noon during these 60 days.
Give your answer correct to 3 significant figures
b) Find the median class interval​