ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 255 - 259 of 472

Access detailed explanations (illustrated with images and videos) to 472 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 300.00 -OR-

How to register? Already Subscribed?

Question 255

Binomial

Question

MCQ▾

Hospital records show that of patients suffering from a certain disease, 85 % die of it. What is the probability that of 5 randomly selected patients, 4 will recover?

Choices

Choice (4)Response

a.

0.0021

b.

0.0454

c.

0.0254

d.

All of the above

Question 256

Cauchy

Question

MCQ▾

The characteristic function of standard Cauchy distribution is ________.

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question 257

Binomial

Question

MCQ▾

Which of the following statement is/are correct regarding De Moivre – Laplace theorem?

Choices

Choice (4)Response

a.

It is valid for very large values of n.

b.

It states that the normal distribution may be used as an approximation to the binomial distribution.

c.

It is a special case of the Chebyshev՚s inequality.

d.

All of the above

Question 258

Question

MCQ▾

A biased coin (with probability of obtaining a Head equal to p > 0) is tossed repeatedly and independently until the first head is observed. What is the probability that the first head appears at an even numbered toss?

Choices

Choice (4)Response

a.

b.

c.

d.

Question 259

Normal

Question

MCQ▾

A factory produces chocolates which are where quantity measured in grams. Chocolates which are lighter than 3.5 gram or heavier than 4.4 gram are rejected. Out of a bunch of 100 chocolates how many would be acceptable?

Choices

Choice (4)Response

a.

47

b.

90

c.

86

d.

72