1 Answer

Sonoilmedico · Answer 1 · 2021-07-01T03:49:25+0000

Answer:

$Expected\ Value = 3$

Explanation:

Given

$Red\ Balls = 3$

$Blue\ Balls = 1$

Required

Determine the expected number of red balls

First, we calculate the probability of a red ball

$P(Red\ Ball) = (Red\ Ball)/(Total)$

$P(Red\ Ball) = (3)/(3 + 1)$

$P(Red\ Ball) = (3)/(4)$

$P(Red\ Ball) = 0.75$

The expected value is then calculated as:

$Expected\ Value = P(Red\ Ball) * Total$

$Expected\ Value = 0.75 * 4$

$Expected\ Value = 3$

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