CBSE Questions for Class 9 Maths Statistics Quiz 2 - MCQExams.com

Find the class mark of the class $$11 - 19$$
  • $$15$$
  • $$11$$
  • $$19$$
  • $$14.5$$
The upper and lower limits of the fifth class.
  • $$52$$ and $$50$$
  • $$55$$ and $$51$$
  • $$54$$ and $$50$$
  • $$58$$ and $$60$$
The mean of first six multiples of $$4$$ is
  • $$13.5$$
  • $$14.5$$
  • $$14$$
  • $$16$$
Find the mean of first ten odd natural numbers.
  • $$10$$
  • $$11$$
  • $$12$$
  • None of these
The lower limit of class interval $$0-5$$ is _____ and upper limit is _____.
  • $$0, 5$$
  • $$0.1, 4.9$$
  • $$2.5, 2.5$$
  • None of these
The lower limit of class having lowest frequency is:
  • $$0$$
  • $$50$$
  • $$10$$
  • None of these
The number of times a particular item occurs in a class interval is called its
  • mean
  • frequency
  • cumulative frequency
  • none of these
Mean of 10 values is 32.If another values is included the mean becomesThe included value is 
  • $$16$$
  • $$14$$
  • $$15$$
  • $$19$$
The value of $$\pi$$ upto $$50$$ decimal places is :
$$3.14159265358979323846264338327950288419716933993751$$

What is the frequency of digit $$0$$.
  • $$0$$
  • $$3$$
  • $$2$$
  • $$1$$
In the class interval $$35 - 46$$; the lower limit is $$35$$ and upper limit is _____
  • $$36$$
  • $$45$$
  • $$46$$
  • $$48$$
State true or false:
The class mark of class interval $$22 - 29$$ is $$25.5$$.
  • True
  • False
Range of $$14, 12, 17, 18, 16$$ and $$x$$ is $$20$$. Find $$x$$ $$(x > 0)$$
  • $$2$$
  • $$28$$
  • $$32$$
  • Cannot be determined
What is the average of squares of consecutive odd numbers between $$1$$ and $$13 $$?
  • $$49$$
  • $$51$$
  • $$53$$
  • $$57$$
Mean of the first six even numbers is
  • $$7$$
  • $$5$$
  • $$3$$
  • $$1$$
The number of times a particular item occurs in a given data is called its
  • variation
  • frequency
  • cumulative frequency
  • None of these
A graph drawn using vertical bars is called
  • Bar graph
  • Line graph
  • Pictograph
  • Pie graph
The arithmetic mean of first five natural numbers is
  • $$3$$
  • $$4$$
  • $$5$$
  • $$6$$
The class interval having highest frequency is:
  • $$30-40$$
  • $$50-60$$
  • $$20-30$$
  • $$40-50$$
Let $$\displaystyle m$$ be the mid-point and $$\displaystyle l$$ the upper class limit of a class in a continuous frequency distribution. The lower limit of the class is 
  • $$\displaystyle 2 m + l$$
  • $$\displaystyle 2 m - l$$
  • $$\displaystyle m - l$$
  • $$\displaystyle m - 2l$$
The upper class limit of inclusive type class interval 10 - 20 is
  • $$10.5$$
  • $$20$$
  • $$20.5$$
  • $$17.5$$
The range of observations 2, 3, 5, 9, 8, 7, 6, 5, 7, 4, 3 is
  • 6
  • 7
  • 5.5
  • 11
The statistical data are of two types. These types are
  • technical data and presentation data
  • primary data and secondary data
  • primary data and personal data
  • none of the above
The size of the each class intervals is:
  • $$5$$
  • $$0$$
  • $$10$$
  • None of these
The classmark of a class interval is
  • Lower limit + Upper limit
  • Upper limit - Lower limit
  • $$\displaystyle \frac{1}{2}$$ (Lower limit + Upper limit)
  • $$\displaystyle \frac{1}{4}$$ (Lower limit + Upper limit)
The arithmetic mean of first five natural number is
  • $$2$$
  • $$3$$
  • $$4$$
  • $$8$$
The class mark of the class intervaI $$40-50$$ is _____.
  • $$40$$
  • $$45$$
  • $$50$$
  • Data insufficient
In a bar chart:
  • rectangles are of equal lengths
  • width of rectangles is fixed
  • rectangles are drawn with unequal shapes between them
  • width of rectangles carry important meaning
Histogram are a great way to show results of _________.
  • categories
  • continuous data
  • both $$A$$ and $$B$$
  • None of these
Which type of data can be represented by histogram?
  • Grouped data
  • Ungrouped data
  • Continuous data
  • None of these
What is the upper and lower limit of the class $$55- 60$$?
  • $$55, 60$$
  • $$55, 55$$
  • $$60, 60$$
  • $$60, 55$$
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