Mathematics, 17.07.2020 01:01, red21120p718de
An urn contains 4 white balls and 7 red balls. Three balls are selected. In how many ways can the 3 balls be drawn from the total of 11 balls: (a) If 2 balls are white and 1 is red? (b) If all 3 balls are white? (c) If all 3 balls are red?
Answers: 3
Mathematics, 21.06.2019 13:40, klrm9792
Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?
Answers: 2
An urn contains 4 white balls and 7 red balls. Three balls are selected. In how many ways can the 3...