(a(i))[2]
Finish the stem-and-leaf diagram so that it represents this data.
(a(ii))[1]
State the median.
(a(iii))[1]
State the upper quartile.
(a(iv))[2]
Calculate the sector angle for the number of days when the temperature is $18\degree$C.
(b(i))[1]
Find the median.
(b(ii))[1]
State the range.
(b(iii))[1]
Find the interquartile range.
(c(i))[4]
Calculate an estimate for the mean.
(c(ii))[2]
Calculate the height of the bar for the $90 < t \leq 150$ interval.