Answer: see below
Step-by-step explanation:
(i)
200/2 = 100
Find 100 on cumulative frequency and the correspinding time: 14 minutes. So the answer is 14 minutes.
(ii)
First, find the lower quartile —> 200/4 = 50
Upper quartile —> 200/(3/4) = 150
Find the difference: 150 - 50 = 100
So the interquartile range is 100
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Answer:
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Step-by-step explanation:
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40%
40 percent of 25 is 10
10/25x100 and you will get your answer which is 40
False. 1/3 of 31 is about 10, so 55 is bigger than 10
