STA301 Final Term Solved MCQs with References

STA301-Statistics and Probability · Solved MCQ(S) · From Final Term Papers · BY Arslan · Feb 3,2018 · V-U

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Final Term Papers Solved MCQS with Reference

1. The parameter of the chi-square distribution is………

o v PG # 306 ( Lec # 41)

o v – 1 o v – 2 o v –p

2. The value of can never be :

o Zero o Less than 1 o Greater than 1

3. Analysis of variance is a procedure that enables us to test the equality of several:

o Variances

o Means

PG # 320 ( Lec # 43 )

o Proportions o Groups

4. When two coins are tossed the probability of at most one head is:

o 1/4 o 2/4 o 3/4 o 4/4

5. The critical region for .05 is when H

o

1. 05

z z

PG # 281 ( Lec # 37)

o

1. 01

z z o

1. 05

z z o

1. 05

z z

6. A discrete probability function f( x) is always:

o Non -negative

o One o Zero

Note: A discrete distribution describes the probability of occurrence of each value of a discrete random variable. A discrete random variable is a random variable that has countable values, such as a list of non-negative integers.

7. When f(x) is When f(x) is continuous probability function for, then P(X = 1) is:

o 1 o  o 

o 0 PG # 188 ( Lec # 24)

8. A random variable can be generated:

o Manually o Mechanically

o Manually & Mechanically PG # 167 ( Lec # 22 )

o Mathematically

Note: Such a numerical quantity whose value is determined by the outcome of a random experiment is called a random variable. Random numbers are the numbers obtained by some random process (manually or mechanically).

9. The curve of the F-distribution depends upon:

PG # 312 ( Lec # 42)

o Standard deviation o Mean o Variance

10. The mode value from raw data can be obtained by the help of

o Dot plot PG # 53 (Lec #6 )

o Stem and leaf plot o Bar chart o None of these

11. In normal distribution, the quartile deviation Q.D =………………….:

o 0.5 o 0.75 o 0.7979 o 0.6745

Note: The quartiles are given by:

Lower quartile

0.6745 Q

and Upper quartile

0.6745 Q

Q12. A randomly selected sample of 400 students at university was asked whether or not they will participate in politics. Forty-six percent of the 400 student surveyed answered “ yes". Which one of the following statement about number 46% is correct?

o It is a sample statistic. o It is a population parameter. o It is a margin of error. o It is a standard error.

Note: In statistics a data sample is a set of data collected and/or selected from a statistical population by a defined procedure. The elements of a sample are known as sample points, sampling units or observations.

13. A student solved 25 questions from first 50 questions of a book. The probability that he will solve the remaining all questions is:

o 0.25 o 0.5 o 1 o 0

14. The average which is defined as the reciprocal of the arithmetic mean of the reciprocals of the values is called:

PG # 77 ( Lec # 9)

o Mode o Median