ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 243 - 248 of 472

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Question 243

Question

MCQ▾

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 244

Question

MCQ▾

If where, then, ________.

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 245

Question

MCQ▾

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 246

Question

MCQ▾

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 247

Question

MCQ▾

If be independent random variables, with having an distribution. Then the distribution of min is ________.

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Question 248

Question

MCQ▾

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.