Time (in seconds) taken by 150 athelets to run a 110 m hurdle race are tabulated below:

$\begin{matrix} Class & 13.8 - 14 & 14 - 14.2 & 14.2 - 14.4 & 14.4 - 14.6 & 14.6 - 14.8 & 14.8 - 15 Frequency & 2 & 4 & 5 & 71 & 48 & 20 \end{matrix}$

Find the number of atheletes who completed the race in less than 14.6 seconds.

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Solution

The number of atheletes who completed the race in less than 14.6

= 2 + 4 + 5 + 71

= 82 [2 Marks]

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The times (in seconds) taken by 150 athelets to run a 110 m hurdle race are tabulated below

$\begin{matrix} Class & 13.8 - 14 & 14 - 14.2 & 14.2 - 14.4 & 14.4 - 14.6 & 14.6 - 14.8 & 14.8 - 15 Frequency & 2 & 4 & 5 & 71 & 48 & 20 \end{matrix}$

The number of atheletes who completed the race in less than 14.6 s is

Q. The times (in seconds) taken by 150 athletes to run a 110 m hurdle race are tabulated below

\begin{matrix} Class & 13.8 - 14 & 14 - 14.2 & 14.2 - 14.4 & 14.4 - 14.6 & 14.6 - 14.8 & 14.8 - 15 Frequency & 2 & 4 & 5 & 71 & 48 & 20 \end{matrix}

The number of athletes who completed the race in less than 14.6 s is ___ .

Q. Question 10
The times (in seconds) taken by 150 atheletes to run a 110 m hurdle race are tabulated below.

\begin{matrix} C l a s s & 13.8 - 14 & 14 - 14.2 & 14.2 - 14.4 & 14.4 - 14.6 & 14.6 - 18.8 & 14.8 - 15 F r e q u e n c y & 2 & 4 & 5 & 71 & 48 & 20 \end{matrix}

(a) 11
(b) 71
(c) 82
(d) 130
The number of atheletes who completed the race in less than 14.6 s is

Q. Question 10
The times (in seconds) taken by 150 atheletes to run a 110 m hurdle race are tabulated below.

\begin{matrix} C l a s s & 13.8 - 14 & 14 - 14.2 & 14.2 - 14.4 & 14.4 - 14.6 & 14.6 - 18.8 & 14.8 - 15 F r e q u e n c y & 2 & 4 & 5 & 71 & 48 & 20 \end{matrix}

(a) 11
(b) 71
(c) 82
(d) 130
The number of atheletes who completed the race in less than 14.6 s is

The times (in seconds) taken by 150 atheletes to run a 110 m hurdle race are tabulated below

$\begin{matrix} C l a s s & 13.8 - 14 & 14 - 14.2 & 14.2 - 14.4 & 14.4 - 14.6 & 14.6 - 14.8 & 14.8 - 15 F r e q u e n c y & 2 & 4 & 5 & 71 & 48 & 20 \end{matrix}$

The number of atheletes who completed the race in less than 14.6 s is

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Time (in seconds) taken by 150 athelets to run a 110 m hurdle race are tabulated below: Class13.8−1414−14.214.2−14.414.4−14.614.6−14.814.8−15Frequency245714820 Find the number of atheletes who completed the race in less than 14.6 seconds.

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

The number of atheletes who completed the race in less than 14.6

= 2 + 4 + 5 + 71

= 82 [2 Marks]