A study done a a polling organization Randomly surveyed 1031 adults by phone. The poll found that 42%of the respondents said the
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The probability of two independent events occurring one after the another is the product of these probabilities, i.e. 
We have given that the probability of the first being red and the second not being red is 0.33,
The probability of the first light being red is
.
And we know that these events are independent, then
We have given that the probability of the first being red and the second not being red is 0.33,
The probability of the first light being red is
And we know that these events are independent, then