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Continue Learning about Statistics
What would be the percentage of a couple who had two boys to have another boy?
50%
A couple has two female children What is the probability that their next child will be male?
50%
What are the last two digits of 5 to power of 347?
The answer is 25. The answer to any calculation 5n (for integer n>1) always ends with 25 The fact that computers cannot deal with large numbers and just add zeros at the end does not mean that the last two digits are actually zero. You can do the whole question modulo 100 and see that 5 to any power larger than 1 ends in 25.
What is the probability that a couple with four children have 2 boys and 2 girls?
1 out of 4. Regardless of what the first two children are, there is a 50/50 chance that each of the following two kids will fulfill the remaining two conditions
What happens if there is two medians?
You take the arithmetic mean of the two middle values.
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