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Probability question

2024 · 8 Apr · Shift 1 · Q56

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Probability
2024 · 8 Apr · Shift 1 · Q56

Probability question

2024 · 8 Apr · Shift 1 · Q56

JEE MainMathematicsProbabilityNumerical+4 / −1

Three balls are drawn at random from a bag containing 5 blue and 4 yellow balls. Let the random variables

X

and

Y

respectively denote the number of blue and yellow balls. If

\bar{X}

and

\bar{Y}

are the means of

X

and

Y

respectively, then

7 \bar{X}+4 \bar{Y}

is equal to

\underline{\hspace{2cm}}

.

Numerical answer

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