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STA301 - Statistics and Probability

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    zaasmiZ
    @zaasmi said in A bag contains 10 white, 2 orange and 3 black balls. What is the probability of black balls?: A bag contains 10 white, 2 orange and 3 black balls. What is the probability of black balls? 3/15 Wrong To calculate the probability of drawing a black ball, we use the probability formula: Probability = Number of favorable outcomes/Total number of outcomes Here: • The number of black balls (favorable outcomes) = 3 • The total number of balls (white + orange + black) = 10 white + 2 orange + 3 black = 15 So, the probability of drawing a black ball is: 3/15=1/5 Thus, the probability of drawing a black ball is 1/5.
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    zaasmiZ
    @zaasmi said in A bag contains 12 red balls and 12 blue balls. A ball is drawn at random. The probability that ball drawn is red isf: A bag contains 12 red balls and 12 blue balls. A ball is drawn at random. The probability that ball drawn is red isf 1/2P (A union qual to:? To find the probability that a randomly drawn ball is red, we use the basic probability formula:  Probability = Number of favorable outcomes/Total number of outcomes Here: • The number of red balls (favorable outcomes) = 12 • The total number of balls (red + blue) = 12 red + 12 blue = 24 So, the probability of drawing a red ball is:  Probability = 12/24 = 1/2 Thus, the probability that the ball drawn is red is 1/2 or 50%.
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