Let X be a random variable representing the mean gray scale of each pixel.
P(110 ≤ X ≤ 140) = P(X < 140) - P(X < 110) = P(z < (140 - 125)/15) - P(z < (110 - 125)/15) = P(z < 1) - P(z < -1) = P(z < 1) - [1 - P(z < 1)] = 2P(z < 1) - 1 = 2(0.84134) - 1 = 1.68268 - 1 = 0.68268
Number of pixels that have gray scale of between 110 and 140 = 0.68268 x 1000000 = 682680 = approximately 680,000
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Answer:
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Step-by-step explanation:
idkkkkkkkkkkkkkkkkkkkk
Answer:
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Step-by-step explanation:
Answer: 0.147
Step-by-step explanation:
Liam / total
total = 10 + 3 + 11 + 44 = 68
10 / 68 = 5 / 34
0.1470588 = 0.147