3. There are 12 girls and 18 boys in the class. Find the probability that among 4 surveyed students: a) there will be ex
Posted: Wed Dec 15, 2021 10:34 am
3. There are 12 girls and 18 boys in the class. Find the probability that among 4 surveyed students: a) there will be exactly 2 girls; b) there will be no girls. 4. Inside a square with vertices at points (0, 0), (1, 0), (0, 1) and (1, 1), we randomly choose a point M (cy). What is a probability of the event A, which is that the point M will lie inside unit circle with center at the origin?