Question 20 Not yet answered Marked out of 1.00 p Flag question The reliability of a system given below is 0.99, find the value of x. 0.75 H 0.8 X a. 0.56 b. 0.6 C. 0.2 d. 0.8
Question 19 Not yet answered Marked out of 1.00 P Flag question Which of the following statements are incorrect? (1) Alternative hypothesis is a hypothesis to be considered as an alternative to the null hypothesis. (ii) The margin of error can be determined if we know only the confidence level. (iii) Confidence interval is an interval of numbers obtained from a sample and by using the specific confidence level of the estimate. a. (i) and (iii) b. (ii) C. (ii) and (iii) d. All of the above
Question 18 Not yet answered Marked out of 1.00 p Flag question Thirteen buttons differ only by colour. There are 4 red buttons, 5 green buttons and 4 yellow buttons. If the buttons are placed in a row; how many different arrangements are possible? a. 34650 b. 45678 C. 11550 d. 90090
The time in hours, during which a tube light is operational is a random variable that follows an exponential distribution with mean 120 hours. what is the conditional probability that it fails during the interval (30,150), given that it has survived until 30 hours? a. 0.632 b. 0.565 c. 0.506 d. 0.211
Question 16 Not yet answered Marked out of 1.00 P Flag question If there are 4500 COVID-19 patients in Muscat region during one week. On an average there are 35 deaths in one week. What is the probability that exactly one death in one day? a. 0.034 b. 0.0415 C. 0.506 d. 0.234
Question 20 Not yet answered Marked out of 1.00 p Flag question The reliability of a system given below is 0.99, find th
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