The cumulative distribution function (cdf) F(x) defines the probability of a random variable X, and assumes a value equal to or less than a specified value, x. As such:
F(30)=P(X≤30)=P(X=10)+P(X=20)+P(X=30)=10010+10020+10030=0.6 or 60%
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The following is the probability mass function for a discrete random variable X,
P(x)=100x;X=10,20,30,40
Determine the CDF at X=30, i.e., F(30)
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TTanishq
Last updated: July 15, 2026 at 14:06
0
A
0.2
8.3%
B
0.3
16.7%
C
0.7
D
0.6
75.0%
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The following is the probability mass function for a discrete random variable X,
$ P(x) = \frac{x}{100}; X = 10, 20, 30, 40 $
Determine the CDF at X=30, i.e., F(30) | Financial Risk Manager Part 1 Quiz - LeetQuiz