(6) From a group of 10 boys and 12 girls, a committee of 4 students is selected (at random). What is the probability that there will be at least one girl on the committee? (a) 202/209 (b) 203/209 (c) 202/211 (d) 203/211 (e) 1/5

In a large population, 65 % of the people have been vaccinated. If 4 people are randomly selected, what is the probability that AT LEAST ONE of them has been vaccinated? How do i do the calucation for this probality?

The probability that a person in the United States has type B​+ blood is 8​%. Five unrelated people in the United States are selected at random. Complete parts​ (a) through​ (d). ​(a) Find the probability that all five have type B​+ blood.   The probability that all five have type B​+ blood is nothing. ​(Round to six decimal places as​ needed.) ​(b) Find the probability that none of the five have type B​+ blood.   The probability that none of the five have type B​+ blood is nothing. ​(Round to three decimal places as​ needed.) ​(c) Find the probability that at least one of the five has type B​+ blood.   The probability that at least one of the five has type B​+ blood is nothing. ​(Round to three decimal places as​ needed.) ​(d) Which of the events can be considered​ unusual? Explain. Select all that apply.     A. The event in part (a) is unusual because its probability is less than or equal to 0.05.   B. The event in part​ (b) is unusual because its probability is…

Suppose you have just received a shipment of 28 modems. Although you don't know this, 4 of the modems are defective. To determine whether you will accept the shipment, you randomly select 9 modems and test them. If all 9 modems work, you accept the shipment. Otherwise, the shipment is rejected. What is the probability of accepting the shipment? The probability of accepting the shipment is (Round to four decimal places as needed.)

The proportion of male students at University of Yale is known to be 65%.  Assume students are randomly assigned to tutorial groups.  What is the probability that there would be fewer than 8 males in a tutorial group of 25 students? (4dp)  What is the probability that there would be more than 18 males in a tutorial group of 25 students? (4dp)

Question 20. A town has a clinic where people go to donate blood. One third of the persons donating blood at each of these clinics have O+ blood. What is the probability that in a randomly chosen day, it takes six donors to find two O* donor in the 6th donor of the day? (a) 0.3292 (b) 0.0329 (c) 0.1097 (d) 0.1314

Q5: The staff at a small company includes: 4 secretaries, 20 technicians, 4 engineers, 2 executives, and 50 factory workers. If a person is selected at random, what is the probability that he or she is a factory worker? (A) 5/8 (В) 1/2 (C) 1/5 (D) None of the above Q6: The probability that a person owns a microwave oven is 0.70, that a person owns a CD player is 0.26, and that person owns both a microwave and a CD player is 0.16, then the probability that a person owns a microwave or a CD player is (A) 0.5 (B) 0.182 (C) 0.8 (D) None of the above

Your sock drawer has 4 red socks and 3 green socks scattered in it. In a hurry to get to Finite, you grab two socks at random. What is the probability that both are the same color? (A) 0 (В) 1 (C) 21 10/21 (E) (F) % (G) ½ (Н) 1