Class VIII

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.
Tally marks are used to find
  1. Class intervals
  2. Range
  3. Frequency
  4. Upper limit
The class mark of the class 20-30 is
  1. 20
  2. 30
  3. 25
  4. 10
The difference between the highest and the lowest value of the observations in a data is called:
  1. Mean
  2. Range
  3. Total frequency
  4. Sum of observation
Which of the following is the probability of an impossible event?
  1. 0
  2. 1
  3. 2
  4. None
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