To the one above indicate clearly the area

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Unformatted text preview: .............................................................. ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... (Total 6 marks) 496 743. A test marked out of 100 is written by 800 students. The cumulative frequency graph for the marks is given below. 800 700 600 Number of candidates 500 400 300 200 100 10 20 30 40 50 60 70 80 90 100 Mark 497 (a) Write down the number of students who scored 40 marks or less on the test. (b) The middle 50 % of test results lie between marks a and b, where a < b. Find a and b. ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... ..................................................................................................................................... (Total 6 marks) 498 744. A theatre has 20 rows of seats. There are 15 seats in the first row, 17 seats in the second row, and each successive row of seats has two...
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This note was uploaded on 06/24/2013 for the course HISTORY exam taught by Professor Apple during the Fall '13 term at Berlin Brothersvalley Shs.

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