The probability distribution of X, the number of imperfections per 10 meters of a synthetic fabric in continuous rolls of uniform width, is

Question

The probability distribution of X, the number of imperfections per 10 meters of a synthetic fabric in continuous rolls of uniform width, is given in as
x 01234
f(x) 0.41 0.37 0.16 0.05 0.01
Find the average number of imperfections per 10 meters of this fabric.

in progress 0
Latifah 2 months 2021-07-30T21:21:24+00:00 1 Answers 23 views 0

Answers ( )

    0
    2021-07-30T21:22:44+00:00

    Answer:

    0.88

    Step-by-step explanation:

    x 01234

    f(x) 0.41 0.37 0.16 0.05 0.01

    The mean or average is the expected value :

    E(X) = Σ(x * p(x)) = (0 * 0.41) + (1 * 0.37) + (2 * 0.16) + (3 * 0.05) + (4 * 0.01)

    E(X) = 0 + 0.37 + 0.32 + 0.15 + 0.04

    E(X) = 0.88

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )