Statistics and Probability-Random Variable as Function on a Sample Space [NDA (National Defense Academy) Mathematics]: Questions 1 - 5 of 5
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Question 1
Appeared in Year: 2012
Question MCQ▾
- A continuous random variable can take all value in an interval.
- A random variable which take a finite number of values is necessarily discrete.
- Construction of a frequency distribution is based on data, which are discrete.
Which of the above statements are correct?
Choices
Choice (4) | Response | |
---|---|---|
a. | and only | |
b. | and only | |
c. | and only | |
d. | and |
Question 2
Question MCQ▾
Calculate the sum of the series
Choices
Choice (4) | Response | |
---|---|---|
a. | 674897119 | |
b. | 8245991 | |
c. | 704811971 | |
d. | Question does not provide sufficient data or is vague |
Question 3
Question MCQ▾
Find the fraction equivalent to the recurring decimals
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.56 | |
b. | 5.21 | |
c. | 1.02 | |
d. | 3.9 |
Question 4
Appeared in Year: 2022
Question MCQ▾
The probability that a randomly chosen matrix with all the entries from the set of first 10 primes, is singular, is equal to: (29 June Morning Shift)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 5
Appeared in Year: 2022
Question MCQ▾
Let X be a random variable having binomial distribution . If , then the sum of the mean and the variance of X is: (Phase 1 27 June 2022 Morning Shift)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |