An ice-cream flavour survey of 720 people revealed that 300 people liked green tea, 260 people liked chocolate, while 50 people liked both. What is the probability that one person selected at random from the survey would like green tea or chocolate? A. 0.29 Plator c) B. 0.49 C. 2104507300 0.71 D. 720 0.78 0.26 0.59 0.74 0.85 B. C. D. =360 The probability that a typist will make at most 5 mistakes when typing a report is 0.59 and the probability that she will make 6 to 10 mistakes is 0.26. Find the probability that the typist will make at most 10 mistakes. A. B. C. D. = 1₁ 0.12 0.88 0.93 0.95 720 = The probabilities that the video card and hard disk of a computer will fail within one year are 0.05 and 0.07 respectively. Assume the components work independently, find the probability that both of them will work within one year. A. Amy and Bill are two of the 10 people joining a massive online game. If two people are to be selected at random as group leaders, find the probability that both Amy and Bill are selected. A. 1/90 B. 1/45 C. 1/5 D. 2/5 1st leader is Amy tortas tão 2nd is Bil11 Biglis Bill / 2nd is Amy 1x1__ +==o 16 9 In a large bucket, there are umbrellas of colours yellow, blue and black. The numbers of yellow, blue and black umbrellas are in the ratio 9 10 11. If an umbrella is picked at random, what is the probability of getting a yellow umbrella? 4. 3/10 3. 1/3 C. 3/7 D. 9/14