Question

110 m Hurdle Race
The time, in seconds, taken by 150 athletes to run a 110 m hurdle race are tabulated below:
13.8–14.0 14.0–14.2 14.2–14.4 14.–14.6 14.6–14.8 14.8–15.0
Time in
seconds
Number of
athletes
2
4
5
70
49
20
Answer the questions based on above:
(a) The maximum frequency of the modal class is:
i) 49
ii) 20
iii) 70
(b) The lower level of the median class is:
iv) 50
i) 14.2 ii) 14.4 iii) 14.6 iv) 14.8
(c The frequency of the median class is:
i) 50 ii) 70 iii) 50
iv) 49
(d) The median of the data is:
i) 14.71 ii) 14.67 iii) 14.4 iv) 14.58
(e) The frequency of the class preceding the modal class is:
i) 4 ii) 5
iii) 2
iv) 11​

Answer 1

Answer:

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Answer 2

Answer:

The times, in seconds, taken by 150 atheletes to run a 110 hurdle race are tabulated below :

Class

Frequency

13.8-14

2

14-4.2

4

14.2-14.4

5

14.4-14.6

71

14.6-14.8

48

14.8-15

20

The number of atheletes who completed the race in less then 14.6 seconds is :

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