Class VIII

Which of the following is the probability of a sure event?
  1. 0
  2. 1
  3. 2
  4. None of these
The number of times a particular observation occurs in a given data is called:
  1. Its frequency
  2. Its range
  3. Its mean
  4. None of these
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
In the interval 35-45, 45 is called
  1. Upper limit
  2. Lower limit
  3. Range
  4. Frequency
The range of the data: 6,14,20,16,6,5,4,18,25,15, and 5 is
  1. 4
  2. 21
  3. 25
  4. 20
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