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प्रश्न
Choose the correct alternative:
A set of numerical values assigned to a sample space is called
पर्याय
random sample
random variable
random numbers
random experiment
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उत्तर
random variable
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संबंधित प्रश्न
Two coins are tossed simultaneously. Getting a head is termed a success. Find the probability distribution of the number of successes
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If c is a constant, then E(c) is
Choose the correct alternative:
If the random variable takes negative values, then the negative values will have
The probability function of a random variable X is given by
p(x) = `{{:(1/4",", "for" x = - 2),(1/4",", "for" x = 0),(1/2",", "for" x = 10),(0",", "elsewhere"):}`
Evaluate the following probabilities
P(X ≤ 0)
The probability function of a random variable X is given by
p(x) = `{{:(1/4",", "for" x = - 2),(1/4",", "for" x = 0),(1/2",", "for" x = 10),(0",", "elsewhere"):}`
Evaluate the following probabilities
P(X < 0)
The probability function of a random variable X is given by
p(x) = `{{:(1/4",", "for" x = - 2),(1/4",", "for" x = 0),(1/2",", "for" x = 10),(0",", "elsewhere"):}`
Evaluate the following probabilities
P(|X| ≤ 2)
Consider a random variable X with p.d.f.
f(x) = `{(3x^2",", "if" 0 < x < 1),(0",", "otherwise"):}`
Find E(X) and V(3X – 2)
