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L B
L B asked in Science & MathematicsWeather · 1 decade ago

Suppose a batter had 228 hits in a season. probability distribution?

x 0 1 2 3 4 5

P(x) 0.1538 .4332 .2825 .0843 .0296 .0166

what is Ux(mhew)= ?

And what is the interpretation of the mean?

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  • Merlyn
    Lv 7
    1 decade ago
    Favorite Answer

    for any discrete random variable the expectation is:

    E(X) = μ = ∑x * P(X = x)

    E(X) = 0 * 0.1538 + 1 * 0.4332 + 2 * 0.2825 + 3 * 0.0843 + 4 * 0.0296 + 5 * 0.0166

    E(X) = 1.4525

    this looks the average number of hits per game.

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