The figure at the bottom of the page shows the probability density of colony dia

Question

The figure at the bottom of the page shows the probability density of colony diameters (in mm) in a hypothetical population of Paenibacillus bacteria. The distribution is continuous, so the probability of sampling a colony within some range of diameter values is given by area under the curve. Numbers next to the curve indicate the area of the region indicated in red. Consider the case in which a single colony is randomly sampled from the population.

d. What is the probability that a randomly chosen colony diameter is between 8 and 10?

e. What is the probability that a randomly chosen colony diameter is between 8 and 12?

Explanation / Answer

D)

P(8<x<10) = P(8<x<12) - P(10<x<12) = 0.48 - 0.14

= 0.34 [ANSWER]

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e)

P(8<x<12) = 0.48 [ANSWER, GIVEN]

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