CBSE Class 9 - Probability: Experimental Approach Videos

• a coin is tossed for 115 times and we get 71 heads find the probability of getting no heads
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• a card is drown randomly from a well suffled pack of 52 cards find the probability of getting (1)a king (2)a ace(3)red jacket(4)face card
• A bag contains 5 white balls, 7 red balls, 4 black balls and 2 blue balls. One ball is drawn at random from the bag. What is the probability that the ball drawn is (i) white or blue (ii) red or black (iii) not white. colud you please explain this question in an easy way.
• Consider the frequency distribution table given below which gives the weights of 38 students of a class Weight (in kg) 31 – 35 36 – 40 41 – 45 46 – 50 51 – 55 56 – 60 61 – 65 Number of students 9 5 14 3 2 1 4
• Given below is the frequency distribution of wages (in ?) of 50 workers in a school. A worker is selected at random, find the probability that his wages are (i) less than ?120 (ii) at least ? 130. (iii) more than or equal to ?120.    
  
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• Three coins are tossed simultaneously 250 times and the following frequencies of the outcomes are recorded:
  
• Please answer this question
  

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