The Expectation Of Random Variable MCQ Tests
12th Class Statistics MCQ Tests
The Expectation Of Random Variable
of 12th Class Statistics has 5 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 5
Total Marks: 5
Time: 5 Mins
Total Questions: 5
Total Marks: 5
Time: 5 Mins
5Min : 00 Sec Remaining
Question # 1
If X and Y are two independent variables then E(XY) will be:
Question # 2
A House of Gambling has a roulette wheel containing 38 numbers: zero (0), double zero (00), and the numbers 1, 2, 3, ..., 36. Let X denote the number on which the ball lands and u(X) denote the amount of money paid to the gambler, such that
Question # 3
Let X be the profit that a person makes in a business. He may earn Rs. 2800 with a probability 0.5, he may lose Rs 5500 with probability 0.3 and he may neither earn nor lose with a probability 0.2. Calculate E(X).
Question # 4
Suppose we toss a penny three times. Let X1 denote the number of heads that we get in the three tosses. And, suppose we toss a second penny two times. Let X2 denote the number of heads we get in those two tosses. Let Y=X1+X2 then Y denotes the number of heads in five tosses. Find the expected value of Y.
Question # 5
Demand of products per day for three days are 21, 19, 22 units and their respective probabilities are 0.29, 0.40, 0.35. profit per unit is $0.50 then what are the expected profits for three days?
Total Questions
12345
Question # 1
If X and Y are two independent variables then E(XY) will be:
Question # 2
A House of Gambling has a roulette wheel containing 38 numbers: zero (0), double zero (00), and the numbers 1, 2, 3, ..., 36. Let X denote the number on which the ball lands and u(X) denote the amount of money paid to the gambler, such that
Question # 3
Let X be the profit that a person makes in a business. He may earn Rs. 2800 with a probability 0.5, he may lose Rs 5500 with probability 0.3 and he may neither earn nor lose with a probability 0.2. Calculate E(X).
Question # 4
Suppose we toss a penny three times. Let X1 denote the number of heads that we get in the three tosses. And, suppose we toss a second penny two times. Let X2 denote the number of heads we get in those two tosses. Let Y=X1+X2 then Y denotes the number of heads in five tosses. Find the expected value of Y.
Question # 5
Demand of products per day for three days are 21, 19, 22 units and their respective probabilities are 0.29, 0.40, 0.35. profit per unit is $0.50 then what are the expected profits for three days?
Total Questions
12345
Statistics
- Representation and Exploration of Data
- Measure of Central Tendency or Averages
- Measures of Dispersion
- Index Numbers
- Regression and Correlation Analysis
- Analysis of Time Series
- Set Theory
- Introduction to Probability
- Random Variables and Distributions
- Binomial and Hypergeometric Distributions
- The Normal Distribution
- Sampling and Sampling Distributions
- Statistical Inference:Estimation
- Statistical Inference:Hypothesis Testing
- Association of Attributes
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Updated on: 10-05-2026
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Punjab 12th Class Statistics The Expectation Of Random Variable