Q 1: If in a bar diagram the length of the rectangle representing 50 units in 10cm, the length of the bar representing 30 units in the same bar diagram is _______. 7cm. 6cm. 5cm. none of these

Q 2: To represent equal numerical values same diagrams are used in _______. bar diagrams pie diagrams pictographs

Q 3: In preparing frequency distribustion, as far as possible the classes should be of the ________. different size same size

Q 4: For the construction of a frequency polygon _______ and frequencies are taken into consideration. upper limits of the class lower limits of the class mid values of class

Q 5: If the upper boundary of a class is 30, class interval is 10, then the lower boundary of the class is _______. 20 10 30

Q 6: In a histogram the sidths of all rectangles are ______. equal not equal

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