RANDOM VARIABLES AND DISTRIBUTIONS Using the graph of a distribution to find probabilities: Advanced The graph of a probability distribution is shown below. The graph is made up of a line segment and two curved paths. y 0.225 x 0 1 2 3 4 5 6 7 8 9 For each part below, suppose a real number is picked according to the above probability distribution. Do not round any of your answers. (a) Find the probability that the number picked is between 3.4 and 4.6. (b) Find the probability that the number picked is not between 3 and 5. (c) Find the probability that the number picked is 3.
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6. This is equal to the area under the curve between x = 4 and x = 4.6. Using the formula for the area of a trapezoid, we have: Probability = 0.225 * (4.6 - 4) = 0.225 * 0.6 = 0.135 Show more…
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