Business Statistics and Research Methods MCQs

Question 1

Which of the following mean is most affected by extreme values?

Accepted Answer

Arithmetic mean

Answer

Mode

Answer

Median

Answer

Geometric mean

Question 2

If co-efficient of correlation is +0.9, then it shows

Accepted Answer

High amount of correlation

Answer

Perfect correlation

Answer

Absence of correlation

Answer

Limited amount of correlation

Question 3

If a boy cycles 8 km at the speed of 8 km per hour, and walks another 8 km at the speed of 2 km per hour. His average speed per hour is

Accepted Answer

4 km

Answer

5 km

Answer

$$\frac{{16}}{5}$$ km

Answer

6 km

Question 4

Which of the following statement is the correct?

Accepted Answer

$$\overline X > GM > HM$$

Answer

$$\overline X < GM < HM$$

Answer

$$\overline X > GM < HM$$

Answer

$$GM > \overline X < HM$$

Question 5

The modal class is a class with . . . . . . . . frequency.

Accepted Answer

highest

Answer

lowest

Answer

no

Answer

None of these

Question 6

When β2 < 3 the distribution is

Accepted Answer

Platykurtic

Answer

Leptokurtic

Answer

Mesokurtic

Answer

None of these

Question 7

Which of the following formulae is/are correct as per the relationship defined by Karl Person? 1. Mode = Mean - 3 [Mean - Median] 2. Mode = 3 Median - 2 Mean 3. Median = Mode + 2/3 [Mean - Mode]

Accepted Answer

Answer

Only 1

Answer

Only 1 and 2

Answer

Only 2

Answer

Only 1 and 3

Question 8

The error present in both the complete enumeration survey and the sample survey . . . . . . . .

Accepted Answer

non-sampling error

Answer

sampling error

Answer

Both A and B

Answer

None of these

Question 9

Which of the following is true about response rates?

Accepted Answer

All of the above

Answer

Mail surveys usually produce lower response rates than personal interviews or telephone surveys

Answer

Question wording can affect a response rate

Answer

The longer the questionnaire, the lower the rate