ISS (Statistical Services) Statistics Paper I: Questions 345 - 351 of 1595
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Question 345
Question MCQ▾
The entropy of a Laplace variable with the following c. d. f is ________
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 346
Question MCQ▾
If be independent random variables, with having an distribution. Then the is ________.
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. | All of the above |
Question 347
Question MCQ▾
Five cards are drawn from a deck of cards with replacement. What is the probability of drawing club, spade and heart?
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.058 | |
b. | 0.029 | |
c. | 0.117 | |
d. | 0.124 |
Question 348
Question MCQ▾
If follows geometric distribution then is________.
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. | All of the above |
Question 349
Question MCQ▾
We roll a four sided die. If the result is 1 or 2, we roll once more but otherwise we stop. What is the probability that the sum total of our rolls is at least 4?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 350
Question MCQ▾
Which of the following situation/situations can be analyzed using Poission distribution?
Choices
Choice (4) | Response | |
---|---|---|
a. | Birth defects and genetic mutations | |
b. | Spread of an endangered animal in Africa | |
c. | Number of typing errors on a page | |
d. | All a., b. and c. are correct |
Question 351
Question MCQ▾
A is known to tell the truth in 3 cases out of 8 and he states that a white ball was drawn from a bag containing 6 blacks and 2 white ball. Find the probability that the white ball was drawn.
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. | None of the above |