sharonahrens354
Answered

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a bag of the same size small balls contains 6 blue balls 5 red balls 5 yellow balls and 4 green balls What is the probability of selecting a blue or green ball on the first draw........A. 1/10. B. 1/2. C. 2/5... D. 9/20​

Sagot :

kaylie4tm2
You would start by finding the total amount of marbles, which in this case is 20.

Then find the total amount of blue AND green balls. 10.

Then put 10/20, simplify, and you have yourself 1/2.
abidemiokin

The probability of selecting a blue or green ball on the first draw is 1/2

Probability is the likelihood or chance that an event will occur. It is expressed as:

Probability = Expected outcome/Total outcome

If a bag of the same size small balls contains 6 blue balls, 5 red balls, 5 yellow balls, and 4 green balls, the:

Total outcome = 6 + 5 + 5 + 4

Total outcome = 20 balls

Get the expected outcome

Pr(blue ball) = number of blue/Total outcome = 6/20

Pr(green ball) = number of green ball/Total outcome= 4/20

Probability of selecting a blue or green ball on the first draw = 6/20 + 4/20

Probability of selecting a blue or green ball on the first draw = 10/20 = 1/2

Hence the probability of selecting a blue or green ball on the first draw is 1/2

Learn more here: https://brainly.com/question/14290138

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