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प्रश्न
Choose the correct alternative:
Which one is not an example of random experiment?
विकल्प
A coin is tossed and the outcome is either a head or a tail
A six-sided die is rolled
Some number of persons will be admitted to a hospital emergency room during any hour
All medical insurance claims received by a company in a given year
उत्तर
All medical insurance claims received by a company in a given year
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संबंधित प्रश्न
The discrete random variable X has the following probability function.
P(X = x) = `{{:("k"x, x = 2"," 4"," 6),("k"(x - 2), x = 8),(0, "otherwise"):}`
where k is a constant. Show that k = `1/18`
Two coins are tossed simultaneously. Getting a head is termed a success. Find the probability distribution of the number of successes
Define dicrete random Variable
Distinguish between discrete and continuous random variables.
Choose the correct alternative:
A variable that can assume any possible value between two points is called
Choose the correct alternative:
A variable which can assume finite or countably infinite number of values is known as
Choose the correct alternative:
The height of persons in a country is a random variable of the type
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)
The p.d.f. of X is defined as
f(x) = `{{:("k"",", "for" 0 < x ≤ 4),(0",", "otherwise"):}`
Find the value of k and also find P(2 ≤ X ≤ 4)
The probability density function of a continuous random variable X is
f(x) = `{{:("a" + "b"x^2",", 0 ≤ x ≤ 1),(0",", "otherwise"):}`
where a and b are some constants. Find a and b if E(X) = `3/5`
