Class VII

What is the range of the following set of data? { 2,5,2,8,45,8,17,9,16}
  1. 43
  2. 45
  3. 15
  4. None of the above
One marble jar has several different colored marbles inside of it. It has 1 red, 2 green, 4 blue, and 8 yellow marbles. All the marbles are the same size and shape. If Peter takes out a marble from the jar without looking, what is the probability tha
  1. 8/15
  2. 7/15
  3. 7/8
  4. 8/7
Median of 7, 6, 4, 8, 2, 5, 11 is
  1. 6
  2. 12
  3. 11
  4. 5
Three unbiased coins are tossed. What is the probability of getting at most two heads?
  1. 3/4
  2. 1/4
  3. 3/8
  4. 7/8
The PE room at school has a variety of colored balls that can be used to play in the school yard. There are 16 red balls, 12, blue balls, 8 yellow balls, and 11 pink balls. What is the probability that you are going to get a pink ball?
  1. 11/36
  2. 11/47
  3. 36/47
  4. None of the above
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