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22-09-2022
Mathematics

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The following table shows the probability distribution for a discrete random
variable.
X 13 16 18 21
23 25 26 31
P(X) 0.07 0.21 0.17 0.25 0.05 0.04 0.13 0.08
The mean of the discrete random variable Xis 20.59. What is the variance
of X? Round your answer to the nearest hundredth.
A. 33.15
B. 31.06
C. 23.18
D. 27.89

The following table shows the probability distribution for a discrete random variable X 13 16 18 21 23 25 26 31 PX 007 021 017 025 005 004 013 008 The mean of t class=

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