STA301 Midterm MCQs Set 3 by VU Topper RM

Q1. Vu-Topper RM (1 marks)

Which method is used for obtaining the relative frequencies?

Dividing the frequency by total number of frequencies

Q2. Vu-Topper RM (1 marks)

Given P(A) = 0.4, P(B) = 0.5 and P(A⋃B)=0.9,then:?

A and B are equally likely events

Q3. Vu-Topper RM (1 marks)

Which is appropriate average for finding the average speed of a car:

A. Mean

B. Mode

Q4. Vu-Topper RM (1 marks)

The-------is often the preferred measure of central tendency if the data are severely skewed.

A. The median

B. The Mode

Q5. Vu-Topper RM (1 marks)

ln measures of relative dispersion, unit of measurement remains:

A. Different

B. Un different

Q6. Vu-Topper RM (1 marks)

Frequency curve is.

A. Asymmetric to x axis

B. Asymmetric to y axis

Q7. Vu-Topper RM (1 marks)

Parameter is a ………quantity.

A. Constant

B. Variable

Q8. Vu-Topper RM (1 marks)

What does the set comprising all possible outcomes of an experiment known as?

1. Sample space.
2. Vertical space

Correct answer: Sample space.

Q9. Vu-Topper RM (1 marks)

A histogram is consisting of a set of a set of adjacent rectangles whose bases are marked off by:

A. Class boundaries Page 32

B. Class limits C. Class frequency D. Class marks

Q10. Vu-Topper RM (1 marks)

The middle value of an ordered array of numbers is the A. Mean

B. Median Page 59

C. Mode D. Midpoint

Q11. Vu-Topper RM (1 marks)

If Mean =25 & S.D is 5 then C.V is: A. 100%

B. 20% Page 88

C. 10% D. 25%

Q12. Vu-Topper RM (1 marks)

You connect the mid-points of rectangles in a histogram by a series of lines that also touches the x-axis from both ends, you will get: A. Ogive B. Frequency polygon

C. Frequency curve Page 38

D. Histogram

Q13. Vu-Topper RM (1 marks)

The conditional probability P (A/B) is:

A. P (A n B)/P (B) Page 154

B. P (A n B)/P (A) C. P (A U B)/P (B) D. P (A U B)/P (A)

Q14. Vu-Topper RM (1 marks)

Chebyshev’s inequality does not hold for k = ?

1. 3
2. 2
3. 1
4. 0 Page 94

Correct answer: 0 Page 94

Q15. Vu-Topper RM (1 marks)

According to Empirical rule, approximately 68% of the measurements will fall within:

A. (Mean – S.D, Mean + S.D) Page 90

B. (Mean – 2S.D, Mean + 2S.D) C. (Mean – 3S.D, Mean + 3S.D) D. None of these

Q16. Vu-Topper RM (1 marks)

For Platykurtic distribution, b2 (moment ratio) will be: A. Greater than 3

B. Less than 3 Page 114

C. Equal to 3 D. Equal to zero

Q17. Vu-Topper RM (1 marks)

There are two broad categories of data, which are: A. Weighted and Un-weighted B. Grouped and Un-grouped

C. Qualitative and Quantitative Page 16

D. Primary and Secondary