Probability [ISS (Statistical Services) Statistics Paper I]: Questions 1 - 4 of 212
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Question 1
Question MCQ▾
Suppose that has the exponential distribution with rate parameter . Then which of the following statement is/are correct regarding it?
Choices
Choice (4) | Response | |
---|---|---|
a. | has the geometric distributions on with success parameter . | |
b. | has the geometric distributions on with success parameter . | |
c. | Both a. and b. are correct | |
d. | Question does not provide sufficient data or is vague |
Question 2
Question MCQ▾
Which of the following statement is/are correct?
Choices
Choice (4) | Response | |
---|---|---|
a. | Pascal distribution is a special case of negative binomial distribution on with parameter and , when k is a positive integer. | |
b. | Pascal distribution is a special case of Normal distribution with parameter , when | |
c. | The pdf of Pascal distribution is symmetric. | |
d. | All of the above |
Question 3
Question MCQ▾
The following below shows the number of heads appearing when 8 coins are tossed.
x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
f | 1 | 9 | 26 | 59 | 72 | 52 | 26 | 7 | 1 |
The probability of getting heads less than 4 is?
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.21 | |
b. | 0.37 | |
c. | 0.27 | |
d. | Question does not provide sufficient data or is vague |
Question 4
Question MCQ▾
If Ω is a sample space the P (Ω) = ________ and can be explained by ________ perspective of probability. The correct choice for filling the blanks is?
Choices
Choice (4) | Response | |
---|---|---|
a. | 1 and classical | |
b. | 1 and empirical | |
c. | 0 and classical | |
d. | 1 and axiomatic |