A marker is selected from a box containing 100
different markers. The selected marker is found
to be defective so it is placed back in the box,
and then second marker is picked. What is the
probability that the second marker selected is
the same marker?
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2/100 is the probability
richi1197:
ok
Explain
divide the number of possible outcomes. this will give the probability of single outcome
that means that there are 100 markers
but only 1 marker is defective
But y 2/100?? Y not (1-58/100)
but the 2nd marker can also be defective that is probability but it not sure
Ya so rest 99 are ok
Ok....
But out of 100 only 1 is defective... Rest 99 are ok
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