(b) Bertie aimed a dart at a dart-board 15 times. The distribution of his scores is: Score, S 2 5 19 25 50 60 Frequency, f 3 4 2 2 1 3 IS 6 20 38 50 50 180 What is the mean of his scores? (1] What is the mode of his scores? [1] What is the median of his scores? [1] What is the range of his scores? [1] What is the Lower Quartile? [1] What is the Upper Quartile? [1] What is the Inter-quartile range? [1] (i) (ii) (ii) (iv) (v) (vi) (vii)

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part b

(b)
Bertie aimed a dart at a dart-board 15 times. The distribution of his scores is:
Score, S
25 19 25 50 60
Frequency, f 3 4
2 2 1
fS
6 | 20 38 50 50 180
(i)
(ii)
(iii)
(iv)
What is the mean of his scores? [1]
What is the mode of his scores? [1]
What is the median of his scores? [1]
What is the range of his scores? [1]
What is the Lower Quartile? [1]
What is the Upper Quartile? [1]
(vii) What is the Inter-quartile range? [1]
(v)
(vi)
3.
Transcribed Image Text:(b) Bertie aimed a dart at a dart-board 15 times. The distribution of his scores is: Score, S 25 19 25 50 60 Frequency, f 3 4 2 2 1 fS 6 | 20 38 50 50 180 (i) (ii) (iii) (iv) What is the mean of his scores? [1] What is the mode of his scores? [1] What is the median of his scores? [1] What is the range of his scores? [1] What is the Lower Quartile? [1] What is the Upper Quartile? [1] (vii) What is the Inter-quartile range? [1] (v) (vi) 3.
BI. (а)
The unfinished Histogram and Frequency Table give information about the
times, in hours, taken by runners to complete the Maths-town Marathon.
Histogram
Frequency Table
Frequency
density
Time (t hours)
2 <t< 3
3 <t < 3.5
3.5 st< 4
Frequency
1200
4 <t< 4.5
800
4.5 <t < 6
1440
4
Time (t hours)
(i) Use the histogram to complete the Frequency Table. [2]
(ii) Use the completed Table to complete the Histogram. [2]
(iii)What percentage of the runners finished in under 3 hours. [2]
Give your answer to the nearest 10%.
Transcribed Image Text:BI. (а) The unfinished Histogram and Frequency Table give information about the times, in hours, taken by runners to complete the Maths-town Marathon. Histogram Frequency Table Frequency density Time (t hours) 2 <t< 3 3 <t < 3.5 3.5 st< 4 Frequency 1200 4 <t< 4.5 800 4.5 <t < 6 1440 4 Time (t hours) (i) Use the histogram to complete the Frequency Table. [2] (ii) Use the completed Table to complete the Histogram. [2] (iii)What percentage of the runners finished in under 3 hours. [2] Give your answer to the nearest 10%.
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