Class VIII

In a frequency distribution with classes 0-10, 10-20, etc. and the size of the class intervals is 10. Then the lower limit of fourth class is
  1. 40
  2. 50
  3. 20
  4. 30
In the interval 35-45, 45 is called
  1. Upper limit
  2. Lower limit
  3. Range
  4. Frequency
A coin is tossed. Which of the following is the probability of getting a head or tail?
  1. 0
  2. 1
  3. 1/2
  4. None of these.
A pictograph represents data using
  1. symbols
  2. bars of uniform width
  3. using pie-chart
  4. None of these
In a pie chart, the total angle at the center of the circle is
  1. 180 degree
  2. 360 degree
  3. 270 degree
  4. 90 degree
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