Q 1: If the upper boundary of a class is 30, class interval is 10, then the lower boundary of the class is _______. 10 20 30

Q 2: 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 _______. 5cm. 6cm. 7cm. none of these

Q 3: If 15, 610, 1115,............ are the classes of a frequency distribution then the upper boundary of class 1115 is ________. 15.5 15 11

Q 4: To represent equal numerical values same diagrams are used in _______. bar diagrams pictographs pie diagrams

Q 5: In preparing frequency distribustion, as far as possible the classes should be of the ________. different size same size

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

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