Percentage distributions are useful in comparing two frequency distributions having different total frequencies. Construct percentage distributions from the following two frequency distributions and determine whether the distributions of daily absences in the two departments follow similar patterns.
Answer to relevant QuestionsA cumulative frequency distribution is constructed from a frequency distribution by replacing each frequency with the sum of the frequency of the given class and the frequencies of all classes above it, and representing each ...If X has the distribution function Find (a) P(X ≤ 3); (b) P(X = 3); (c) P(X < 3); (d) P(X ≥ 1); (e) P(- 0.4 < X < 4); (f) P(X = 5). For each of the following, determine whether the given function can serve as the probability distribution of a random variable with the given range: (a) f (x) = x- 2/5 for x = 1, 2, 3, 4, 5; (b) f (x) = x2/30 for x = 0, 1, ...With reference to Exercise 3.26, find the distribution function of X and use it to reevaluate the two probabilities asked for in that exercise. In exercise The distribution function of the random variable X is given by Find P(X ≤ 2), P(1< X < 3), and P(X > 4).
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