MCQOPTIONS
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MCQOPTIONS
This section includes 141 Mcqs, each offering curated multiple-choice questions to sharpen your Statistics knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
If right tail is longer than left tail then distribution is called _________________? |
| A. | Negatively Skewed |
| B. | Positively Skewed |
| C. | All of above |
| D. | None of these |
| Answer» C. All of above | |
| 102. |
If mean is 25 and standard deviation is 5 then C.V (Coefficient of variation) is_______________? |
| A. | 100% |
| B. | 25% |
| C. | 20% |
| D. | None of these |
| Answer» D. None of these | |
| 103. |
If any of the value in data set is negative then it is impossible to compute:_____________? |
| A. | Arithmetic Mean |
| B. | Harmonic Mean |
| C. | Geometric Mean |
| D. | Mode |
| E. | Median |
| Answer» D. Mode | |
| 104. |
If any of the value in data set is zero then it is not possible (i.e. impossiblE. to compute_______________? |
| A. | Mode |
| B. | Median |
| C. | Mean |
| D. | Harmonic Mean |
| E. | Geometric Mean |
| Answer» E. Geometric Mean | |
| 105. |
If all values are same then the measure of dispersion will be________________? |
| A. | 1 |
| B. | 0 |
| C. | Mean |
| D. | Mode |
| E. | Median |
| Answer» C. Mean | |
| 106. |
If a distribution is abnormally tall and peaked, then is can be said that the distribution is_____________? |
| A. | Leptokurtic |
| B. | Pyrokurtic |
| C. | Platykurtic |
| D. | Mesokurtic |
| Answer» B. Pyrokurtic | |
| 107. |
If a distribution has two modes then this distribution is called______________? |
| A. | Uni-Modal |
| B. | Bi-Modal |
| C. | Tri-Modal |
| D. | Multi-Modal |
| Answer» C. Tri-Modal | |
| 108. |
If a and b are two constants, then Var(a+bX) is_______________? |
| A. | a±bVar(X) |
| B. | Var(a)±Var(X) |
| C. | ±bVar(X) |
| D. | b2Var(X) |
| E. | (a±b)Var(X) |
| Answer» E. (a±b)Var(X) | |
| 109. |
If 10% is added to each value of variable, the geometric mean of new variable is added by_______________? |
| A. | 5% |
| B. | 10% |
| C. | No Change |
| D. | 110% |
| E. | 90% |
| Answer» C. No Change | |
| 110. |
If β2=m4m22 |
| A. | Normal |
| B. | Mesokurtic |
| C. | Leptokurtic |
| D. | Platykurtic |
| Answer» E. | |
| 111. |
Identify the attribute? |
| A. | Blood group |
| B. | Blood Pressure |
| C. | Temperature of room |
| D. | Religions of people of a country |
| Answer» E. | |
| 112. |
Given the N values in a series, the geometric mean is______________? |
| A. | The third root of the product of N values |
| B. | The square root of the product of N values |
| C. | The fourth root of the product of N values |
| D. | The Nth root of the product of N values |
| Answer» E. | |
| 113. |
Geometric means of X1 and X2 is________________? |
| A. | X1+X2 |
| B. | X1+X2x |
| C. | X1+X2−−−−−−−√ |
| D. | X1×X2−−−−−−−√ |
| E. | X1−−−√+X2−−−√ |
| Answer» E. X1−−−√+X2−−−√ | |
| 114. |
For Mesokurtic curve of the distribution, β2 is__________________? |
| A. | Zero |
| B. | 3 |
| C. | 4 |
| D. | None of these |
| Answer» C. 4 | |
| 115. |
For a symmetrical distribution approximately 68% of the cases are included between _________________? |
| A. | X¯¯¯¯−S and X¯¯¯¯+S |
| B. | X¯¯¯¯−2S and X¯¯¯¯+2S |
| C. | X¯¯¯¯−3S and X¯¯¯¯+3S |
| D. | None of these |
| Answer» B. X¯¯¯¯−2S and X¯¯¯¯+2S | |
| 116. |
For a certain distribution if ∑(x−2)=18,∑(x−24)=0,∑(x−28)=−24) then arithmetic mean is_______________? |
| A. | 21 |
| B. | 24 |
| C. | 28 |
| D. | 0 |
| Answer» C. 28 | |
| 117. |
Find the median of the following datA. 160, 180, 200, 280, 300, 320, 400? |
| A. | 140 |
| B. | 300 |
| C. | 180 |
| D. | 280 |
| Answer» E. | |
| 118. |
f1x12 + f2x22 + —————+ fxx42=___________? |
| A. | Σu1=1 ƒ ixi2 |
| B. | Σni-1 ƒ ixi2 |
| C. | Σpi=1 ƒ ixi2 |
| D. | Σmi=1 ƒ ixi2 |
| Answer» B. Σni-1 ƒ ixi2 | |
| 119. |
Eyes color of employees is the example of____________? |
| A. | Continuous variable |
| B. | Constant variable |
| C. | Discrete variable |
| D. | Attribute |
| Answer» E. | |
| 120. |
Dependence of difference on statistics is for_______________? |
| A. | Two reasons |
| B. | Short run |
| C. | Three reasons |
| D. | Natural Sciences |
| Answer» D. Natural Sciences | |
| 121. |
Data published by Bureau of statistics in its publications are _______________? |
| A. | Secondary data |
| B. | Discrete data |
| C. | Continuous data |
| D. | None |
| Answer» E. | |
| 122. |
Data in the Population Census Report is____________? |
| A. | Grouped data |
| B. | Ungrouped data |
| C. | Secondary data |
| D. | Primary data |
| E. | Arrayed data |
| Answer» E. Arrayed data | |
| 123. |
Data regarding opinions of consumers about some product obtained through lady workers are ____________? |
| A. | Cheapest method |
| B. | Existing Sources |
| C. | Primary |
| D. | Secondary |
| Answer» C. Primary | |
| 124. |
Data must be arranged either in ascending or descending order, if some wants to compute____________? |
| A. | Mode |
| B. | Median |
| C. | Harmonic Mean |
| D. | Geometric Mean |
| E. | Median |
| Answer» F. | |
| 125. |
Data being used by an agency which is originally collected by them are _______ data? |
| A. | Quantitative |
| B. | Primary |
| C. | Discrete |
| D. | Secondary |
| Answer» C. Discrete | |
| 126. |
___________ data are collected for the first time. |
| A. | Research |
| B. | Statistical |
| C. | Secondary |
| D. | Primary |
| Answer» E. | |
| 127. |
Continuous variable can assume __________ value? |
| A. | All possible |
| B. | Constant |
| C. | Accuracy |
| D. | Specific |
| Answer» B. Constant | |
| 128. |
Census reports used as a source of data is____________? |
| A. | Primary source |
| B. | secondary source |
| C. | Organized data |
| D. | none |
| Answer» C. Organized data | |
| 129. |
Arithmetic mean of two positive numbers “X” and “Y” is_________________? |
| A. | ab2 |
| B. | 2a2 |
| C. | (a+b)/2 |
| D. | a−b2 |
| E. | 2a+b |
| Answer» D. a−b2 | |
| 130. |
Arithmetic Mean is___________affected by extreme values? |
| A. | Not |
| B. | Highly |
| C. | Less |
| D. | None of these |
| Answer» C. Less | |
| 131. |
Age of a shopkeeper is the example of___________? |
| A. | Qualitative |
| B. | Quantitative data |
| C. | Variable data |
| D. | Continuous data |
| Answer» E. | |
| 132. |
According to the empirical rule, approximately what percent of the data should lie within μ±σ? |
| A. | 75% |
| B. | 99.7% |
| C. | 90% |
| D. | 95% |
| Answer» E. | |
| 133. |
A parameter is a measure which is computed from___________? |
| A. | Population data |
| B. | Sample data |
| C. | Test statistics |
| D. | None of these |
| Answer» B. Sample data | |
| 134. |
A numerical value calculated from sample is called____________? |
| A. | Mathematics |
| B. | Economics |
| C. | Statistic |
| D. | None of these |
| Answer» D. None of these | |
| 135. |
A measure of dispersion is always ________________? |
| A. | Zero |
| B. | Positive |
| C. | Negative |
| D. | Infinity |
| Answer» C. Negative | |
| 136. |
A contractor employs 20 male, 15 female and 5 children in his factory. Male wages are Rs. 10 per day, female Rs. 8 per day, and children Rs. 3 per day. The weighted x of wages paid per day will be_____________? |
| A. | 3.86 |
| B. | 8.37 |
| C. | 9.21 |
| D. | 10.63 |
| Answer» C. 9.21 | |
| 137. |
A constant variable can take values______________? |
| A. | Zero |
| B. | Fixed |
| C. | Not fixed |
| D. | Nothing |
| Answer» C. Not fixed | |
| 138. |
A Constant can assume _______ value? |
| A. | One |
| B. | Four |
| C. | More than value |
| D. | Resindent |
| Answer» B. Four | |
| 139. |
A characteristics that does not change is called______________? |
| A. | variable |
| B. | Attribute |
| C. | Constant |
| D. | None of these |
| Answer» D. None of these | |
| 140. |
A chance variation in an observational process is_____________? |
| A. | Dispersion/ Variability |
| B. | Measurement error |
| C. | Random error |
| D. | Instrument error |
| Answer» D. Instrument error | |
| 141. |
2nd Quartile = 5th Decile = 50th Percentile = ? |
| A. | Mode |
| B. | Median |
| C. | Mean |
| D. | Geometric Mean |
| Answer» C. Mean | |