ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 380 - 383 of 472
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Question 380
Question
MCQ▾A hen lays eggs, where . Each egg hatches with probability , independently of the other eggs. Find the probability distribution of number of chicks,
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | Question does not provide sufficient data or is vague | |
Question 381
Question
MCQ▾Let be a ramdom variable and . A sample of size is taken from this population. What is the probability that the sum of these observations is less than ?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | 0.0062 | |
c. | ||
d. | ||
Question 382
Question
MCQ▾From past experience, it is known that the number of tickets purchased by a student standing in line at the ticket window for the cricket match of India against Srilanka follows a distribution that has mean and standard deviation . Suppose that few hours before the start of one of these matches there are eager students standing in line to purchase tickets. If only tickets remain, what is the probability that all students will be able to purchase the tickets they desire?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 0.6915 | |
b. | 0.0095 | |
c. | 0.3085 | |
d. | 0.9905 | |
Question 383
Question
MCQ▾Suppose we choose at random numbers from the interval with uniform distribution. If describes the th choice and , then which of the following is correct?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||