10) Lena recorded the number of late trains at a station in a day over a period.
She shows this information in a diagram.
Number of
days
5
4
3
2
1
*
*
1
*
*
*
*
*
*
23 4
*
*
*
5
Number of late trains in a day
6 7 8
*
9
(a) For this information work out the median number of late trains in a day
.
4
Key
means there were 2
days when 4 trains
were late each day
(2)