Assume that male and female births are equally likely and the birth of any child does not affect the probability of gender of any other children. Find the probability below; a. Having exactly 4 girls in 10 births b. Having at least 4 girls in 10 births c. Having exactly 8 girls in 20 births
1- Assume that male and female births are equally likely and the birth of any child does not affect the
a. Having exactly 4 girls in 10 births
b. Having at least 4 girls in 10 births
c. Having exactly 8 girls in 20 births
2- Several students are unprepared for a true/false test with 25 questions, and all of their answers are guesses. Find the mean, variance and standard deviation for the number of correct answers for such student.
3-
A new health center is being planned for a community that does not yet has its own health center. If in that community, the average birth is 2.25 births per day. Find the probability that in one day, the number of births is;
a. 0
b. 1
c. 4
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