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lozanna [386]
3 years ago
7

Betty has a bag with 20 marbles in it. Some of the marbles are blue, some are green, and some are yellow.

Mathematics
2 answers:
sammy [17]3 years ago
8 0

Answer with Step-by-step explanation:

Since we have given that

Number of trials = 500

Number of yellow marbles = 56

Number of green marbles =  52

Number of blue marbles = 392

So, Probability that a marble drawn at random will be blue is given by

\dfrac{392}{500}

So, Probability that a marble drawn at random will be green is given by

\dfrac{52}{500}

So, Probability that a marble drawn at random will be yellow is given by

\dfrac{56}{500}

Express each probability estimate as a fraction with 20 in the denominator.

1) Probability that a marble drawn at random will be blue is given by

\dfrac{392\div 25}{500\div 25}=\dfrac{15.68}{20}

2) Probability that a marble drawn at random will be yellow is given by

\dfrac{56\div 25}{500\div 25}=\dfrac{2.24}{20}

3) Probability that a marble drawn at random will be green is given by

\dfrac{52\div 25}{500\div 25}=\dfrac{2.08}{20}

Nezavi [6.7K]3 years ago
5 0
392 / 500 double and take one decimal place to see percentage

52/500

56/500 e.g. 56*2 = 112 now take 1 decimal so it is 11.2%

now divide each by 20
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