BCOM Maths-1 MCQ's




Question 91 :
Mode of 30, 50, 40, 30, 25, 20, 30, 45, 15, 28 is _____.

  1. 30
  2. 25
  3. 40
  4. 50
  

Question 92 :
Ogive curve occur for

  1. More than type distribution
  2. Less than type distribution
  3. Both (a) and (b)
  4. None of (a) and (b)
  

Question 93 :
Ogive for more than type and less than type distribution intersect at

  1. Mean
  2. Median
  3. Mode
  4. None of the above
  

Question 94 :
With the help of histogram we can prepare

  1. Frequency Polygon
  2. Frequency Curve
  3. Frequency Distribution
  4. All the above
  

Question 95 :
With the help of histogram, one can determine

  1. Median
  2. Mode
  3. Mean
  4. All the above
  

Question 96 :
In case of open-end class intervals, _____ cannot be calculated

  1. Median
  2. Mode
  3. Third Quartile
  4. Arithmetic Mean
  

Question 97 :
If an extreme value 100 is changed to 1000, the following measure does not get affected : (i) Median, (ii) Arithmetic Mean, (iii) Mode, (iv) 1st Quartile, (v) 3rd Quartile

  1. (i), (iv) and (v)
  2. Only (ii)
  3. All except (ii)
  4. (i) and (ii)
  

Question 98 :
The arithmetic mean of 150, 250, 350, 450, 550 and 650 is _____.

  1. 350
  2. 400
  3. 250
  4. 300
  

Question 99 :
If each observation in a sample of ‘n’ values is 7, then the arithmetic mean of this sample is _____.

  1. n
  2. 7
  3. 7/n
  4. 7n
  

Question 100 :
_____ can be used for further algebraic treatment

  1. Median
  2. Arithmetic Mean
  3. 1st Quartile
  4. Mode
  

Question 101 :
If, in a set of 30 observations, each value is increased by 10, the arithmetic mean increases by _____.

  1. 10
  2. 3
  3. 300
  4. 3.33
  

Question 102 :
If a frequency distribution has open end classes, one cannot calculate

  1. Median
  2. Mode
  3. Mean
  4. Quartiles
  

Question 103 :
The sum of n observations is 630 and their mean is 42, then the value of n is _____.

  1. 25
  2. 20
  3. 30
  4. 15
  

Question 104 :
_____ a/are merit/s of the measure of central tendency ‘arithmetic mean’.(i) It is not affected by extreme values, (ii) It can be located graphically, (iii) It is easily calculated, (iv) It is capable of further mathematical treatment.

  1. (iii)
  2. (ii) and (iii)
  3. iii) and (iv)
  4. All of the above
  

Question 105 :
If an extreme value 100 is changed to 1000, the following measure does not get affected : (i) Median, (ii) Arithmetic Mean, (iii) Mode, (iv) 1st Quartile, (v) 3rd Quartile

  1. (i), (iv) and (v)
  2. Only (ii)
  3. All Except (ii)
  4. (i) and (ii)
  

Question 106 :
In case of open-end class intervals, _____ cannot be calculated.

  1. Only Median
  2. Arithmetic Mean and Mode
  3. All Quartiles
  4. Only Arithmetic Mean
  

Question 107 :
The arithmetic mean of 110, 125, 140, 150 and 165 is _____.

  1. 140
  2. 138
  3. 96
  4. 139
  

Question 108 :
_____ can be used for further algebraic treatment.

  1. Median
  2. Arithmetic Mean
  3. 3rd Quartile
  4. Mode
  

Question 109 :
If, in a set of 20 observation, each value is increased by 5, the arithmetic mean increases by _____.

  1. 20
  2. 4
  3. 5
  4. zero
  

Question 110 :
Mean age of 50 students in a class was 14 years. Two new students with ages 13 and 14 were admitted to this class. The average age of all 52 students is _____.

  1. 14.54 years
  2. 13.98 years
  3. 13.46 years
  4. 12.94 years
  

Question 111 :
Mean weight of 50 students was 63 kg. Two students with weights 64 kg and 61 kg were admitted to this class. The average weight of all 52 student is _____.

  1. 62.98 kg
  2. 63 kg
  3. 69.28 kg
  4. 62.5 kg
  

Question 112 :
If there are two groups with 50 observations each and with 25 and 35 as values of their arithmetic mean, the combined arithmetic mean of 100 observations is _____.

  1. 30
  2. 25
  3. 35
  4. None of the other options
  

Question 113 :
14 is the mean of 7 observations, 20 is the mean of 8 observations. The mean of the combined set is _____.

  1. 17
  2. 17.2
  3. 15
  4. 34
  

Question 114 :
In a school average score of girls is 78 and that of boys is 72. The average for the school (boys and girls together) is 75. The ratio of number of boys to number of girls is _____.

  1. 0.084027778
  2. 0.043055556
  3. 0.042361111
  4. 0.125694444
  

Question 115 :
If there are two groups with 40 observations and 60 observations with arithmetic means 120 and 80 respectively, the combined arithmetic mean of 100 observations is _____.

  1. 96
  2. 148
  3. 104
  4. 100
  

Question 116 :
In a school average score of girls is 78 and that of boys is 72. The average for the school (Boys and girls together) is 75. The ratio of number of boys to number of girls is _____.

  1. 0.084027778
  2. 0.043055556
  3. 0.042361111
  4. 0.125694444
  

Question 117 :
A student got 45, 34, 35, 40 and 30 in five subjects which were assigned weights 2, 3, 1, 1 and 3 respectively. His weighted average is _____.

  1. 36.8
  2. 35.7
  3. 34
  4. 71.4
  

Question 118 :
If more importance is to be given to the semester end examination marks than the project marks, the best measure of central tendency to be used is _____.

  1. Arithmetic Mean
  2. Median
  3. Weighted Arithmetic Mean
  4. Mode
  

Question 119 :
A student got 65, 74, 55, 60 and 52 in five subject which were assigned weights 2, 1, 3, 1 and 3 respectively. His weighted average is _____.

  1. 61.2
  2. 58.5
  3. 57.5
  4. 60
  

Question 120 :
The point of intersection of the 'less than' and the 'greater than' cumulative frequency curve corresponds to _____.

  1. Mean
  2. Median
  3. Mode
  4. Geometric Mean
  
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