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02-04-2017
Mathematics

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The probability of drawing an even number or number greater than 4 containing the numbers 1-10, inclusive.

Would the probability of this event be:

A) 0.25
B) 0.5
C) 0.8
D) 1

Respuesta :

02-04-2017

Key word here, "or"...so you would add the unique probabilities of either together...

P(e)=1/2, P(>4)=3/10 (the numerator is three rather than five because 2 and 4 were already accounted for in P(e)...

P=5/10+3/10=8/10=4/5 (80%)

P=0.8

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