ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 243 - 248 of 472
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Question number: 243
» Probability » Distribution Functions and Properties
Question
Which of the following statement is/are incorrect regarding a cumulative distribution function ?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | is continuous from the right. | |
b. | have limits from left | |
c. | is increasing | |
d. | None of the above | |
Question number: 244
» Probability » Probability Distributions » Multinomial
Question
If where, then, ________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. |
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b. |
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c. |
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d. | None of the above | |
Question number: 245
» Probability » Probability Distributions » Bernoulli
Question
If is a Bernoulli trials process with parameter, then will be ________with parameter________?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Non- Bernoulli trials, | |
b. | Bernoulli trials, 1- | |
c. | Bernoulli trials, | |
d. | All of the above | |
Question number: 246
» Probability » Discrete and Continuous Random Variables
Question
Z is the number of reading sessions a randomly chosen public library offers in their literacy program for kids. Is the random variable Z discrete or continuous?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Can’t say anything | |
b. | Discrete | |
c. | Sometime discrete sometime continuous | |
d. | Continuous | |
Question number: 247
» Probability » Probability Distributions » Exponential
Question
If be independent random variables, with having an distribution. Then the distribution of min is ________.
Choices
| Choice (4) | Response | |
|---|---|---|
a. |
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b. |
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c. |
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d. | None of the above | |
Question number: 248
» Probability » Probability Distributions » Bernoulli
Question
Suppose that a student takes a multiple choice test. The test has 20 questions, each of which has 4 possible answers (only one correct). If the student blindly guesses the answer to each question, do the questions form a sequence of Bernoulli trials? What will be the parameter (probability of giving correct answer)?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Yes and | |
b. | No but | |
c. | Can’t say anything | |
d. | Insufficient information. | |