- Please Answer All Parts 1 (14.5 KiB) Viewed 38 times
same time gun II shoots 10 shots. The precision of these two guns is not the same, on the average, out of 10 shots bullet , from gun 18 hit the target, and from gun II only 7. During the shooting the target has been hit by a but it is not known which gun shot this bullet. What is the probability that the target was hit by gun II.
12- The student in a class are selected at random, one after the other, for an examination. Find the probability that the boys and girls in the class alternate if - The class consists of 4 boys and 3 girls. 11- The class consists of 3 boys and 3 girls.
14- w a certain collage, 4% of the men and 1% of the women are taller than 1.8 m. Furthermore, 60% of the student are women. Now if student is selected at room and the taller than 1.8 in what is the probability that the student is woman?
15-The probability that a man will live 10 more years is and the probability that his wife will live 10 more years is 1/3. Find the probability that: 1- both will be a live in 10 years, i-at least one will be alive in 10 years.