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The average of first five multiples of $3$ is

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Important Questions on Measures of Central Tendency

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

In a class average height of all students is

p c m

. Among them, average height of

10

students is

q c m

and the average height of the remaining students is

r c m

. The number of students in the class is

HARD

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

Mean of

35

observation is

75

. The mean of first

18

observation is

70

and the mean of last

18

observation is

80

find the

18^{th}

observation.

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

Observe the following table

$\begin{matrix} Class & 0 - 20 & 20 - 40 & 40 - 60 & 60 - 80 & 80 - 100 & Total \\ Frequency & 17 & f_{1} & 32 & f_{2} & 19 & 120 \end{matrix}$

If the above data has mean $50$ , then missing frequencies $f_{1}$ and $f_{2}$ are respectively

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The mean marks obtained by

300

students in a subject are

60

. The mean of top hundred students was found to be

80

and the mean of last hundred student was found to be

50

. The mean marks of the remaining hundred students are_____.

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The mean of

11

numbers is

35

. If the mean of the first

6

numbers is

32

and that of the last

6

numbers is

37

, then the sixth number is

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

Consider the following distribution:

class	frequency
$0 - 20$	$17$
$20 - 40$	$28$
$40 - 60$	$32$
$60 - 80$	$f$
$80 - 100$	$19$

If the mean of the above distribution is $50$ , what is the value of $f$ ?

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

Find the mean of

x + 1, x + 3, x + 4, x + 8

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The mean weight of

100

students in a class is

46 kg

. The mean weight of boys is

50 kg

and of girls is

40 kg

. The number of boys exceeds the number of girls by ______.

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The average of three numbers is

20

. If two of the numbers are

16

and

22

, then the third is

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The mean of first eight prime numbers is

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The mean of

5

number is

15

. If one more number is included, the mean of

6

number becomes

17

. What is included number?

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The scores obtained by a team in kabaddi series is as follows:

17, 2, 7, 27, 15, 5, 14, 8, 10, 24, 48, 10, 8, 7, 18, 28

. Find the mean score obtained by the team?

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

Read the following frequency distribution for two series of observations and answer the two items that follow: Series I and Series II is the given frequency.

Class Interval	Series- I	Series- II
$10 - 20$	$20$	$4$
$20 - 30$	$15$	$8$
$30 - 40$	$10$	$4$
$40 - 50$	X	$2 X$
$50 - 60$	Y	Y
Total	$100$	$100$

What is the mean of frequency distribution of Series- I?

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The heights (in

cm

) of five students are

150, 165, 161, 144

and

155

. What are the values of mean and median (in

cm

) respectively?

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

What is the algebraic sum of the deviation from the mean of a set of value

25, 65, 73, 75, 83, 76, 17, 15, 7, 14

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The mean of

5

observations

x, x + 2, x + 4, x + 6, x + 8

m

. What is the mean of first three observations?

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The ages of

7

family members are

2, 5, 12, 18, 38, 40 and 60 years

respectively. After

5 years

a new member aged

x years

is added. If the mean age of the family now goes up by

1.5 years

, then what is the value of

x

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

A person covers half of his journey at

30 km / hr

and the remaining half at

20 km / hr

. The average speed for the whole journey is

EASY

Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

Find the difference of mean and Median value of

5, 8, 2, 6, 9, 15, 12, 18 o f t h e n u m b e r

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Quantitative Aptitude>Data Interpretation>Measures of Central Tendency>Mean

The mean and median of $7, 5, 5, 2, 7, 6, 5, 3, 7, 6$ is-

1. $5.3$ and $5$

2. $5$ and $5.5$

3. $5$ and $6$

4. $5.3$ and $5.5$

The average of first five multiples of 3 is

Important Questions on Measures of Central Tendency

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The average of first five multiples of $3$ is