[填空题]
The histogram below show zk.lt:r-yuep37 y2vqs the weights of 4ulv sgy (1b l1u-jc-q783zs ;ut+ardb0 Honeydew Melons, each measured correct to the nea1u;dr ut qs j+c1--38yv(ub lg az7blsrest kg.
1. Write down the modal weight of the melons. kg
2. Find the median weight of the melons.
The lower quartile is 3 $\mathrm{~kg}$ . kg
3. Calculate
(1) the upper quartile; kg
(2) the interquartile range.
