A box contains 3 red and 7 white handkerchiefs. One handkerchief is drawn at random and in its place a handkerchief of the other color is put in the box. Now one handkerchief is drawn at random from the box. Find the probability that it is red.
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A box contains 3 red and 7 white balls, one ball is drawn at random and in its place a ball of the other colour is put in the box. Now one ball is drawn at random from the box. Find the probability that it is red.
Answer
0.06
0.28
0.34 answer
0.84
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1
Step-by-step explanation:
total no. of red handkerchief = 3
total nom of handkerchief =7+3=10
P(E) = red handcherchief/ total no. of handkerchief
= 3/10
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