The temperature is -3 degrees celcius at sunrise. By noon, the temperature changes by 5 degrees. What is the possible temperatur
2 answers:
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<h2>Answer:</h2>
The probability is:
It is given that:
An urn contains balls numbered 1 through 20.
A ball is chosen, returned to the urn, and a second ball is chosen.
This means that this is a case of a replacement.
Hence, one of the event is independent of the other.
Now we know that the probability to get a particular number of ball is:
( Since, there are total 20 balls and a ball of one particular number is just unique )
i.e.
Hence, the probability that the first and second balls will be a 8 is:
Please find attached photograph.
The answers are:
1) 2.5ab
2) 1/100 b^2
