Question

Question 10
The times (in seconds) taken by 150 atheletes to run a 110 m hurdle race are tabulated below.
$\begin{array}{ccccccc}Class& 13.8-14& 14-14.2& 14.2-14.4& 14.4-14.6& 14.6-18.8& 14.8-15\\ Frequency& 2& 4& 5& 71& 48& 20\end{array}$
(a) 11
(b) 71
(c) 82
(d) 130
The number of atheletes who completed the race in less than 14.6 s is

Answer 1

The number of atheletes who completed the race in less than 14.6
=2+4+5+71=82