taniaorozco taniaorozco

27-08-2018
Mathematics

contestada

elibri has a spinner like the one that follow, where 3/5 of the spinner is red, 1/5 is blue and 1/5 is yellow.

elibri earns 15 points every time she spins a blue of yellow space, and she earns 5 points every time she spins a red space.

what is the expected value of a single spin?

PLEASE HELP AND THANK YOU

Respuesta :

sqdancefan sqdancefan

27-08-2018

The expected value is the sum of values multiplied by their probabilities.

... 15×(1/5+1/5) + 5×(3/5) = 6+3 = 9

The expected value of a single spin is 9 points.

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