Question 15 Not yet answered Marked out of 1.00 p Flag question Three coins are tossed at the same time. We say A as the event of receiving at least 2 heads. Likewise, B denotes the event of getting no heads and C is the event of getting heads on the second coin. Which of the following is mutually exclusive? a. Events A & B b. Events A&C c. Events B&C d. Both (a) and (c)
Question 14 Not yet answered Marked out of 1.00 p Flag question In a probability and statistics class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected, is a. 27/90 b. 27/92 C. 21/46 d. 189/506
Question 13 Not yet answered Marked out of 1.00 p Flag question Bank Muscat ATM pins are 4 digit numbers. Before 2019, ATM pins had the following restrictions: the first digit could not be 0 or 8, the second digit is either o or 1, the third digit must be an even number and the fourth digit was any number 1 through 8 inclusive. Under these rules, how many different ATM pins possible? a. 576 b. 720 c. 512 d. 640
Question 11 Not yet answered Marked out of 1.00 p Flag question Two hundred units of a particular component were subjected to an accelerated life test equivalent to 2500 hours of normal use. One failed after 1300 hours and another failed after 2300 hours. All others were working at the conclusion of the test. Find mean time to failure. a. 249350 b. 249300 c. 250000 d. 255500
Question 12 Not yet answered Marked out of 1.00 p Flag question Balls numbered 1 to 20 are mixed up and then a ball is drawn at random. What is the probability that the ball drawn has a number which is a multiple of 2 and 3? a. 3/20 b. 1/20 C. 8/20 d. 9/20
Question 15 Not yet answered Marked out of 1.00 p Flag question Three coins are tossed at the same time. We say A as the
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