If an event occurs 38 times out of 100 samples, the frequency of that event is
Frequency means no. of times an event occurred in total
possibilities. For example, if of 100 puppies, only 50 survive to
maturity. So frequency of survivors = 50 out of 100 = 50/100=
0.5
So in given question, 38 times event occurred out of 100.
So frequency = 38 in 100. = 38/100 = 0.38
If you want in percentage, then multiply frequency by 100. --> 0.38*100 = 38%
If an event occurs 38 times out of 100 samples, the frequency of that event is
The odds of obtaining and item is 1/136. The event actually occurs 3 times, and the item is obtained 2 out of those 3 times. What are the percentage odds of that happening?
When a certain experiment is performed, exactly one of event A, B, or C occurs, so that S={A, B, C} is a sample space for the experiment. Event A occurs with probability 1/2, while event B occurs with probability 1/3 and event C occurs with probability 1/6. If the experiment is performed 15 times, what is the probability that A occurs 8 times, B occurs 4 times and C occurs 3 times?
Given a Poisson random variable x, where the average number of times an event occurs in a certain period of time or space is 1.5, then P(x = 2) is: a. 0.5 b. 0.5020 c. 0.2510 d. 0.2231 e. 0.1116
Events A and B are mutually exclusive. Suppose event A occurs with probability 0.26 and event B occurs with probability 0.29. If event A or event B occurs cor both), what is the probability that A occurs?
Events A and B are independent. Suppose event A occurs with probability 0.67 and event B occurs with probability 0.70 .a. If event A or event B occurs, what is the probability that both A and B occur?b. If B does not occur, what is the probability that A occurs?
1.9 The probability W(n) that an event characterized by a probability p occurs n times in N trials was shown to be given by the binomial distribution Consider a situation where the probability p is small (p « 1) and where one is interested in the case n < N. (Note that if N is large, W(n) becomes very small if n → N because of the smallness of the factor P" when p 《I. Hence W(n) is indeed only...
Events A and B are independent. Suppose event A occurs with probability 0.96 and event B occurs with probability 0.62.a. Compute the probability that A occurs but B does not occur.b. Compute the probability that either A occurs without B occurring or A and B both occur.
Events A and B are mutually exclusive. Suppose event A occurs with probability 0.4 and event B occurs with probability 0.58a. Compute the probability that B occurs or A does not occur (or both).b. Compute the probability that either B occurs without A occurring or A and B both occur.
Events A and B are mutually exclusive. Suppose event A occurs with probability 0.21 and event B occurs with probability 0.72.a. Compute the probability that A does not occur or B does not occur (or both).b. Compute the probability that either B occurs without A occurring or A and B both occur.
Event A occurs with probability 0.3, and event B occurs with probability 0.4. If A and B are independent, we may concludeA. P(A and B) = 0.12.B. P(A|B) = 0.3.C. P(B|A) = 0.4.D. All of the above