English
Tamil Nadu Board of Secondary EducationHSC Commerce Class 12

Choose the correct alternative: The height of persons in a country is a random variable of the type - Business Mathematics and Statistics

Advertisements
Advertisements

Question

Choose the correct alternative: 

The height of persons in a country is a random variable of the type

Options

  • discrete random variable

  • continuous random variable

  • both (a) and (b)

  • both (a) and (b)

MCQ
Advertisements

Solution

continuous random variable

shaalaa.com
Random Variable
  Is there an error in this question or solution?
Chapter 6: Random Variable and Mathematical expectation - Exercise 6.3 [Page 143]

APPEARS IN

Samacheer Kalvi Business Mathematics and Statistics [English] Class 12 TN Board
Chapter 6 Random Variable and Mathematical expectation
Exercise 6.3 | Q 29 | Page 143

RELATED QUESTIONS

Construct cumulative distribution function for the given probability distribution.

X 0 1 2 3
P(X = x) 0.3 0. 0.4 0.1

The discrete random variable X has the probability function.

Value
of X = x
0 1 2 3 4 5 6 7
P(x) 0 k 2k 2k 3k k2 2k2 7k2 + k

If P(X ≤ x) > `1/2`, then find the minimum value of x.


Explain what are the types of random variable?


What do you understand by continuous random variable?


Choose the correct alternative: 

A set of numerical values assigned to a sample space is called


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(0 ≤ X ≤ 10)


Let X be a random variable with a cumulative distribution function.
F(x) = `{{:(0",",  "if"  x  < 0),(x/8",",  "if"  0 ≤ x ≤ 1),(1/4 + x/8",",  "if"  1 ≤ x ≤ 2),(3/4 + x/12",",  "if"  2 ≤ x < 3),(1",",  "for"  3 ≤ x):}`
Compute: (i) P(1 ≤ X ≤ 2) and (ii) P(X = 3)


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)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×