[填空题]
The number of phone cv2. n)uj sv8swt,ig ky1wek16al5rz 289cvnv 5mz rbj10jl i-zrls per hour that store managers receive during the day arei8vz1m rlrzvbz c5-jn2j r059 shown below.
$\begin{array}{llllllll}3 & 5 & 6 & 2 & 4 & 7 & 4 & 9\end{array} $
1. Find the median number of calls.
2. Write down the value of
(1). the mode;
(2). the upper quartile.
3. Find the probability that managers received no more than 5 calls in a randomly chosen hour.
