a jar has 1 blue and 9 green marbles in it.What is the proabability of drawing. A. green marble. B. a blue marble.

Number of blue marbles = 1Number of green marbles = 9Total number of marbles = 10Total number of possible outcomes = 101.Number of green marbles = 9Number of favourable outcomes = 9Pgreen marble = no. of favourable outcomestotal possibe outcomes = 9102.Number of blue marbles = 1Number of favourable outcomes = 1Pblue marble = no. of favourable outcomestotal possibe outcomes = 110

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No. of green marbles 9
No.of blue marbles   1
total marbles        9+1
                         =10
so the probability of getting green marble is 9/10
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Probability of getting green marble. = 9/10
probability of getting blue marble. = 1/10
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PROBABILITY = FAVOURABLE OUTCOMES / TOTAL OUTCOMES
FOR GREEN MARBLE=9/10
FOR BLUE MARBLE=1/10
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PROBABILITY FOR GETTING GREEN MARBLES = 9 / 10
PROBABILITY FOR GETTING BLUE MARBLES = 1 / 10                                   
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