CBSE Questions for Class 11 Commerce Economics Measures Of Central Tendency Quiz 1 - MCQExams.com

The weight ( in kg ) of $$5$$ men are $$62, 65, 69, 66$$ and $$61.$$ The median is
  • $$45$$ kg
  • $$66$$ kg
  • $$65$$ kg
  • $$55$$ kg
_________ of a distribution is that value of the variant which divides it into two equal parts.
  • Mode
  • Mean
  • Median
  • Harmonic mean
What is a reasonable explanation for a data set of the test score of 75 students in which the mean score is 81 and the median is 68? 
  • An extremely low score
  • A number of typical scores
  • Too many scores
  • Two extremely high scores
The sum of four consecutive odd integers $$w, x, y,$$ and $$z$$ is $$24$$. What is the median of the set $$\left \{w, x, y, z, 24\right \}$$?
  • $$3$$
  • $$5$$
  • $$7$$
  • $$9$$
  • $$24$$
Let the sum of the first three terms of an A.P. be $$39$$ and the sum of its last four terms be $$178$$. If the first term of this A.P. is $$10$$, then the median of the A.P. is:
  • $$29.5$$
  • $$28$$
  • $$31$$
  • $$26.5$$
Median of the data: $$1, 9, 4, 3, 7, 6, 8, 8, 12, 15$$ is.
  • $$6.5$$
  • $$7.5$$
  • $$8$$
  • Any number between $$7$$ and $$8$$
The median of $$10,\space 14,\space 11,\space 9,\space 8,\space 12,\space 6$$ is
  • $$14$$
  • $$11$$
  • $$10$$
  • $$12$$
The mean of $$x, y, z$$ is $$y$$, then $$x+z =$$
  • $$y$$
  • $$2y$$
  • $$3y$$
  • $$zy$$
A set of numbers consists of three $$4$$'s, five $$5$$'s, six $$6$$'s, eight $$8$$'s and seven $$10$$'s. The mode of this set of numbers is
  • $$6$$
  • $$7$$
  • $$8$$
  • $$10$$
A student obtained $$60, 75$$ and $$85$$ marks respectively in three monthly examinations in Mathematics and $$95$$ marks in the final examination. The three monthly examinations are of equal weightage whereas the final examination is weighted twice as much as a monthly examination. The mean marks of Mathematics are
  • $$80$$
  • $$81$$
  • $$82$$
  • $$85$$
The median of $$34,32,48,38,24,30,27,21,35$$ is 
  • $$32$$
  • $$34$$
  • $$38$$
  • $$30$$
Which one of the following is not central tendency ?
  • Mean deviation
  • Arithmetic mean
  • median
  • Mode
Percentile divides the number of items into ______ equal parts.
  • $$10$$
  • $$100$$
  • $$20$$
  • $$50$$
If a variable takes discrete values $$x+4, \space x-\displaystyle\frac{7}{2}, \space x-\displaystyle\frac{5}{2}, \space x-3, \space x-2, \space x+\displaystyle\frac{1}{2}, \space x-\displaystyle\frac{1}{2}, \space x+5, \space (x>0)$$ then the median is
  • $$x - \displaystyle\frac{5}{4}$$
  • $$x - \displaystyle\frac{1}{2}$$
  • $$x-2$$
  • $$x + \displaystyle\frac{5}{4}$$
A set of numbers consists of three 4's, five 5's, six 6's, eight 8's and seven 10's. The mode of this set of numbers is
  • More than 5
  • More than 5 but less than 10
  • 8
  • None
Which of the following is not a measure of central tendency:
  • Mean
  • Median
  • Class interval
  • Mode
The median of the data $$5,6,7,8,9,10$$ is
  • $$7$$
  • $$8$$
  • $$7.5$$
  • $$8.5$$
Find the mode of:
$$5, 6, 9, 13, 6, 5, 6, 7, 6, 6, 3$$
  • $$6$$
  • $$7$$
  • $$9$$
  • 13
The mode of the following data:
$$120,110,130,110,120,140,130,120,140,120$$ is
  • $$110$$
  • $$120$$
  • $$130$$
  • $$115$$
Find the mode of $$27,12,18,19, 18,24,17,18$$
  • $$17$$
  • $$18$$
  • $$19$$
  • $$20$$
Find the median of the following data:
$$9, 3, 20, 13, 0, 7$$ and $$10$$
  • $$7$$
  • $$9$$
  • $$10$$
  • None of these
Ages of the employees of a company are given below. Find the mode.
Ages (in years)222325192127
Number of employees141917271215
  • $$18$$ years
  • $$19 $$ years
  • $$20$$ years
  • $$21$$ years
The ages of teachers of a school are 
$$53, 37, 39, 51, 46, 42, 44, 47, 55, 48$$. Find the median
  • $$46.5$$
  • $$47.5$$
  • $$48.5$$
  • $$49.5$$
The average of daily wages for the workers of the two factories combined is 
No.of wage earnersFactory A 250Factory B 200
Average daily wage Rs.2.00Rs.2.50
  • $$2.22$$
  • $$3.15$$
  • $$4.10$$
  • None of these
Which of the following is different from others 
  • $$5^{th}Decile$$
  • Median
  • $$50^{th}Percentile$$
  • Upper quartile
The measure of dispersion is
  • Mean deviation
  • S.D.
  • quartile deviation
  • all of the above
Find the median of the given data.
$$30, 32, 24, 34, 26, 28, 30, 35, 33, 25$$
  • $$32$$
  • $$26$$
  • $$30$$
  • $$25$$
Frequency distribution of daily commission received by 100 salesmen is given.
Daily commission (in Rs.)$$100 - 120$$$$120 - 140$$$$140 - 160$$$$160 - 180$$$$180 - 200$$
No. of salesman$$20$$$$45$$$$22$$$$9$$$$4$$
Find mean daily commission received by a salesman.
  • $$136.4$$
  • $$140$$
  • $$130$$
  • None of these
The mean of $$x + 3, x + 5, x + 7, x + 9$$ and $$x + 11$$ is
  • $$2x+7$$
  • $$x+8$$
  • $$x+7$$
  • None of these
Find the mean of first ten odd natural numbers.
  • $$10$$
  • $$11$$
  • $$12$$
  • None of these
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