Probability
What is the probability that a dart tossed at random will land in the yellow area of the figure above.
Step 1: Find the area of the large rectangle.
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Step 2. Find the Area of The yellow rectangle.
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A(1) = lw
A(1) = 10(5)
A (1)= 50 square units
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A (2)= lw
A (2)= 4(7)
A(2) = 28 square units
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Step 3: Divide the part by the whole
28/50
14/25 probability of landing in the yellow area.
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Step 1: Find the area of the large circle.
The large circle's radius is 7
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Step 2. Find the Area of the blue area.
Subtract the area of the white circle from the area of the large circle. The radius of the white circle is 1
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2
A = pr
2
A = p7
A = 49p
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2
A = 49p - pr
A = 49p- 1p
A = 48p
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Step 3: Divide the part by the whole
48p/49p
48/49 probability of landing in the blue area.
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The square is divided by the diagonal. The diagonal divides the square into two equal parts. Therefore, the probability of a dart landing in the green area is 1/2.
The circle is divided into four equal parts. The red section is 1/4 of the circle. Therefore, the probability that a dart will land in the red area is 1/4.
The circle above is divided into six equal parts; two of the part are red. The probability that a dart will land in a red area is 2/6 or 1/3.
The circle above is divided into three equal parts; two of the parts are red. The probability that a dart will land in the red area is 2/3.
The circle above is divided into six equal parts. Three of the parts are red. The probability that a dart will land in the red area is 3/6 or 1/2.
The probability that a dart will land in the red area is 1/3. The probability that a dart will land in the white area is 2/3.
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