0
Q:

Consider the following frequency distribution:

x     f

8     6

5     4

6     5

10    8

9     9

4     6

7     4

What is the median for the distribution?

A) 6 B) 7
C) 8 D) 9

Answer:   C) 8



Explanation:
Summation of frequencies = 6+4+5+8+9+6+4 = 42
Median = mid value = average of 21st and 22nd value
Arranging data in increasing order we get

x     f

4     6

5     4

6     5

7     4

8     6

9     9

10    8

 
So mid value i.e 21st and 22nd value = 8
Subject: Average
Exam Prep: Bank Exams
Q:

Find the range of the data 9, 5, 9, 3, 4, 7, 8, 4, 8, 9, 5, 9.

 

A) 3 B) 5
C) 6 D) 4
 
Answer & Explanation Answer: C) 6

Explanation:
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5 12814
Q:

The average weight of 25 bags is 55 kg. The weight of one bag was misread as 65 instead of 56. Find the correct mean value.

A) 55.25 B) 55.36
C) 54.64 D) 55.65
 
Answer & Explanation Answer: C) 54.64

Explanation:
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0 784
Q:

The average height of A, B and C is 148 cm. If the average height of A and B is 136 cm and that of B and C is 125 cm, then what is the height (in cm) of B?

A) 56 B) 78
C) 112 D) 130
 
Answer & Explanation Answer: B) 78

Explanation:
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2 807
Q:

The median of the numbers 4, 2, 2, 6, 3 and 8 is

A) 4.5 B) 3.5
C) 4 D) 3
 
Answer & Explanation Answer: B) 3.5

Explanation:
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5 720
Q:

Find the mean value of 2, 3, 3, 4, 6, 7

A) 4.17 B) 4.15
C) 4.13 D) 4.70
 
Answer & Explanation Answer: A) 4.17

Explanation:
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4 745
Q:

Find the value of '?, if the mean of the data set 18, 16, 22, 13, ? = 16.

A) 9 B) 11
C) 10 D) 12
 
Answer & Explanation Answer: B) 11

Explanation:
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1 783
Q:

Average of 10 numbers is 14. If each number is multiplied by 6, then what will be the new average?

 

A) 70 B) 84
C) 56 D) 92
 
Answer & Explanation Answer: B) 84

Explanation:
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1 8655
Q:

The sum of 15 observations of a data is (434 + x). If the mean of the data is x, then the value of x is

A) 31 B) 33
C) 27 D) 25
 
Answer & Explanation Answer: A) 31

Explanation:
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