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There are 10 marbles in the bag below. 7 of the marbles are red, 1 is purple and 2 are green. A marble is picked at random from the bag. Work out the probability that the marble is red, P(red), as a) a decimal. b) a percentage.​

There Are 10 Marbles In The Bag Below 7 Of The Marbles Are Red 1 Is Purple And 2 Are Green A Marble Is Picked At Random From The Bag Work Out The Probability Th class=

Sagot :

Nirthiraidn

Answer:  a) 0.7

               b)  70%

Step-by-step explanation:

a) There are 10 marbles.The red marbles are 7

                so that  7/10

                 then change to decimal 7/10=0.7

b) if we get percentage *100

        so,    7÷10*100%

                 70%                            

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