CBSE Questions for Class 9 Maths Statistics Quiz 3 - MCQExams.com

How many students have heights between $$180 - 200$$?

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  • $$10$$
  • $$24$$
  • $$15$$
  • $$7$$

Find the class interval with lowest frequency.

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  • $$318-335$$
  • $$354-371$$
  • $$372-389$$
  • $$426-443$$
Fill in the blank$$:$$
$$___________$$ frequency is defined as a running total of frequencies.
  • Variable
  • Accelerate
  • Data
  • Cumulative
The following frequency distribution gives the monthly consumption of electricity of $$68$$ consumers of a locality. In which class interval, the number of consumers are the highest?

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  • $$105-125$$
  • $$125-145$$
  • $$145-165$$
  • $$185-205$$
How many ponds had $$20-39$$ ducks?

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  • $$25$$
  • $$30$$
  • $$20$$
  • $$15$$
 12 24 36 48 60 72
 24 48 60 72 50 30
 50 45 50 75 50 34
The number of students in a quiz competition scores are in the table. How many students scored $$50$$ marks?
  • $$4$$
  • $$5$$
  • $$8$$
  • $$3$$
The annual maintenance cost of a machine in a factory over a seven years period is represented in the histogram.
In which year the maintenance is very low?

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  • $$1995-1996$$
  • $$1996-1997$$
  • $$1997-1998$$
  • $$1998-1999$$
In which hour interval, the children are $$55$$?

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  • $$0-10$$
  • $$10-20$$
  • $$20-30$$
  • $$30-40$$
Which is the lowest ticket collected by Judah?

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  • $$5$$
  • $$11-13$$
  • $$14-16$$
  • $$10$$
Find the total number of tickets.

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  • $$60$$
  • $$80$$
  • $$90$$
  • $$100$$
Rahul made a frequency table of height for his students. In which class interval, the number of students is less?

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  • $$5-10$$
  • $$10-15$$
  • $$15-20$$
  • $$35-40$$
How many tickets were collected in the interval $$11-13$$?

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  • $$25$$
  • $$15$$
  • $$10$$
  • $$5$$
Find the number of children in the interval $$20-30$$ hours?

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  • $$10$$
  • $$15$$
  • $$25$$
  • $$45$$
The annual maintenance cost of a machine in a factory over a seven years period is represented in the histogram.
In which year the maintenance cost is $$2500$$?

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  • $$1998-1999$$
  • $$2000-2001$$
  • $$2001-2002$$
  • $$1995-1996$$
In which frequency the number of tickets were same?

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  • $$2-4$$ and $$17-19$$
  • $$5-7$$ and $$8-10$$
  • $$8-10$$ and $$11-13$$
  • $$14-16$$ and $$17-19$$
Judah recorded the number of football tickets collected by his friends, on the histogram.

What is the total number of tickets collected by Judah between the interval $$8-10$$?

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  • $$5$$
  • $$15$$
  • $$10$$
  • $$40$$
From the graph, find the number of tickets collected between the interval $$14-16$$.

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  • $$25$$
  • $$20$$
  • $$15$$
  • $$10$$
How many music directors required to create $$(9-10)$$ song?

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  • $$8$$
  • $$5$$
  • $$4$$
  • $$6$$
In the graph you can find the takings of a chocolate bar for $$8$$ months. Answer the following question:
In which two months, $$40000$$ chocolate bars are taken out?

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  • Jan and Feb
  • Feb and May
  • May and Apr
  • Jun and Jul
Calculate the number of songs made during the interval $$9-10$$.

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  • $$14$$
  • $$6$$
  • $$8$$
  • $$10$$
In which interval the number of music directors made more songs?

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  • $$1-2$$
  • $$3-4$$
  • $$5-6$$
  • $$7-8$$
How many songs were made between the interval $$3-4$$?

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  • $$20$$
  • $$18$$
  • $$6$$
  • $$14$$
Upto $$6$$ songs are totally made by how many music directors?

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  • $$20$$
  • $$18$$
  • $$10$$
  • $$50$$
How many students got more than $$70$$ marks?

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  • $$16$$
  • $$8$$
  • $$47$$
  • $$18$$
Mean of $$40$$ observations was given as $$160$$.It was detected that $$125$$ was misread as $$160$$. Find the correct mean.
  • $$158$$
  • $$169$$
  • $$159$$
  • $$161$$
Length of the class $$11-20$$ is ______.
  • $$9$$
  • $$10$$
  • $$11$$
  • $$20$$
A factory kept track of the number of broken plates per shipment last month. Which range of broken plates per shipment occurred more frequently?

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  • $$10-19$$
  • $$40-49$$
  • $$30-39$$
  • $$20-29$$
Find the number of songs made during the interval $$5-6$$.

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  • $$20$$
  • $$15$$
  • $$6$$
  • $$8$$
Find the average of the expressions $$2x+4, 5x-1$$ and $$-x+3$$.
  • $$x+2$$
  • $$x-2$$
  • $$2x+2$$
  • $$2x-2$$
$$12-n, 12, 12+n$$
What is the average (arithmetic mean) of the $$3$$ quantities in the list above?
  • $$4$$
  • $$12$$
  • $$18$$
  • $$4+\dfrac{n}{3}$$
  • $$12+\dfrac{n}{3}$$
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