Question: The probability distribution of a random variable X is given. x 420 490 500 555 600 P ( X = x ) 0.1 0.2 0.4

The probability distribution of a random variable X is given.

x 420 490 500 555 600

P(X = x)

 0.1 0.2 0.4 0.2 0.1

Compute the mean, variance, and standard deviation of X. (Round your answers to two decimal places.)

mean
variance
standard deviation

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