STA301 Quiz by S Khan Academy

SOLVED BY SANAULLAH KHAN · STA301 QUIZ FILE · Subject Enrolment · 1. Online classes are available (Mathematics) · 2. Solved graded activities · Assignment’s · Quizzes · GDB’s · 3. Solved quiz files · 4. Past papers · 5. Any info about virtual university of · Pakistan · Final project (MTH620) · Email: · Mr.khan.1431 · S KHAN ACADEMY · STA301 FINAL TERM SOLVED MCQ’s

1. A quantity obtained by applying certain rule or formula is known as Select correct option:

• Estimator · 2. Criteria to check a point estimator to be good involves · Select correct option: · • Above

3. The F-distribution always ranges from: Select correct option:

• 0to∞

4. Parameter is a ...... quantity.

• Constant

5. To find the estimate of a parameter ..... methods are used.

• Three

6. A failing student is passed by an examiner. It is an example of:

• Type II error

7. For two mutually exclusive events A and B, P (A) = 0.2 and P (B) = 0.4, then P(AUB) is: • 0.6
8. An urn contains 4 red balls and 6 green balls. A sample of 4 balls is selected from the urn without replacement. It is the example of: Select correct option:

• Hypergeometric distribution · 12. We use the Poisson approximation to the binomial when: · • p is 0.05 Or less & n is 20 or more · 13. The conditional probability P (A\B) is: · • P(A n B)/P(B) · 14. We use the General Rule of Multiplication to combine: · • Events those are not independent

Q15. Which statement is NOT CORRECT?

• The sampling distribution describes how our estimate (answer) will vary if a new sample is taken

16. Probability of an impossible event is always: · • Greater than one · 17. The probability can never be: Select correct option:

• -1/2

18. The conditional probability P (A\B) is:

• P (A n B)/P (B)

19. A random sample of n=25 values gives sample mean 83. Can this sample be regarded as drawn from a normal population with μ= 80 and s= 7? In this question the alternative hypothesis will be: