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19-11-2021
Mathematics

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(a) A box contains 7 red balls, 6 white balls, and 7 black balls. Two balls are drawn at random from the box (with replacement of the first before the second is drawn). What is the probability of getting a red ball on the first draw and a white ball on the second

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19-11-2021

Answer:

Step-by-step explanation:

20=total marbles

7/20 × 6/20= 21/400 or 5.25%

red white

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