Business Statistics and Research Methods MCQ Questions and Solutions with Explanations

Section 1 Section 2 Section 3 Section 4 Section 5 Section 6 Section 7 Section 8 Section 9 Section 10 Section 11 Section 12

41.
The weight of 50 students in pounds are given below

82 95 120 174 179 176 159 91 85 175

88 160 97 133 159 176 151 115 105 172

170 128 112 101 123 117 93 117 99 90

113 119 129 134 178 105 147 107 155 157

98 117 95 135 175 97 160 168 144 175

If the data are arranged in the form of frequency distribution with class interval as 81-100, 101-120, 121-140, 141-160, 161-180, then the frequencies for these five classes will be
Select the correct answer using the options given below

A. 6, 9, 10, 11, 14

B. 12, 11, 6, 9, 11

C. 6, 9, 12, 12, 11

D. None of these

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42.
Which of the following mean is most affected by extreme values?

A. Mode

B. Arithmetic mean

C. Median

D. Geometric mean

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43.
If co-efficient of correlation is +0.9, then it shows

A. Perfect correlation

B. Absence of correlation

C. Limited amount of correlation

D. High amount of correlation

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44.
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

A. 5 km

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

C. 4 km

D. 6 km

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45.
Which of the following statement is the correct?

A. $$\overline X < GM < HM$$

B. $$\overline X > GM > HM$$

C. $$\overline X > GM < HM$$

D. $$GM > \overline X < HM$$

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46.
The modal class is a class with . . . . . . . . frequency.

A. highest

B. lowest

C. no

D. None of these

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47.
When β₂ < 3 the distribution is

A. Leptokurtic

B. Platykurtic

C. Mesokurtic

D. None of these

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48.
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]

A. Only 1

B. Only 1 and 2

C. Only 2

D. Only 1 and 3

E. All 1, 2 and 3

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49.
The error present in both the complete enumeration survey and the sample survey . . . . . . . .

A. sampling error

B. non-sampling error

C. Both A and B

D. None of these

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50.
Which of the following is true about response rates?

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

B. Question wording can affect a response rate

C. The longer the questionnaire, the lower the rate

D. All of the above

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1 2 3 4 5 6 7 8 9 10

82	95	120	174	179	176	159	91	85	175
88	160	97	133	159	176	151	115	105	172
170	128	112	101	123	117	93	117	99	90
113	119	129	134	178	105	147	107	155	157
98	117	95	135	175	97	160	168	144	175

82	95	120	174	179	176	159	91	85	175
88	160	97	133	159	176	151	115	105	172
170	128	112	101	123	117	93	117	99	90
113	119	129	134	178	105	147	107	155	157
98	117	95	135	175	97	160	168	144	175

Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce

Answer & Solution

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

Answer & Solution

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

Answer & Solution

44. 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

Answer & Solution

45. Which of the following statement is the correct?

Answer & Solution

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

Answer & Solution

47. When β2 < 3 the distribution is

Answer & Solution

48. 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]

Answer & Solution

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

Answer & Solution

50. Which of the following is true about response rates?

Answer & Solution

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42.
Which of the following mean is most affected by extreme values?

43.
If co-efficient of correlation is +0.9, then it shows

44.
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

45.
Which of the following statement is the correct?

46.
The modal class is a class with . . . . . . . . frequency.

47.
When β₂ < 3 the distribution is

48.
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]

49.
The error present in both the complete enumeration survey and the sample survey . . . . . . . .

50.
Which of the following is true about response rates?

82	95	120	174	179	176	159	91	85	175
88	160	97	133	159	176	151	115	105	172
170	128	112	101	123	117	93	117	99	90
113	119	129	134	178	105	147	107	155	157
98	117	95	135	175	97	160	168	144	175