The value of the arithmetic mean is not affected by the extreme values.
True
False
Median of raw data is not affected by the extreme values.
True
False
Mode is the value which occurs the maximum number of times in data.
True
False
Mean is always one of the observations in the data.
True
False
Median is one of the observations in the data if the number of observations is odd.
True
False
The value of mean, median and mode can never be equal.
True
False
The range of the data 3, 7, 1, 2, 2, 6, 9, 5 would change if 8 was added to each value in the data.
True
False
Mean can never be a fraction.
True
False
The measures of central tendency may not lie between the maximum and minimum values of data.
True
False
The mode is always one of the numbers in data.
True
False
The value of mode can never be the lowest or highest observation of the data.
True
False
Click the correct answer.
Which of the following is not a central tendency?
Mean
Range
Median
Mode
What is the mode of the data?
Maximum value of the data
Middle value of the data
Most occurring value of the data
Least occurring value of the data
What is the median of 3, 2, 1, 2, 1, 5 and 2?
1
2
3
2.5
If the mean of 20, 21, 23, 18 and x is 23, then what is the value of x?
20
23
28
33
What is the mode of 3, 4, 1, 4, 3, 6, 0, 3, 3, 2, 6, 2, 6 and 1?
3
6
4
2
A cricketer scores 48, 72, 30, 56, 0, 7 and 100 runs in eight innings. What is the range of runs scored?
30
56
93
100
The median of the marks scored by five students is 70. If the highest marks scored are increased by 2, then what is the new median?
72
68
70
140
The mean of the data 12. If each observation of data is increased by 1, then what is true about the new mean?
It increases by 1
It decreases by 1
It remains the same
None of these
A shopkeeper keeps a weekly record of sales of different sizes of shirts. Which central tendency cannot be ignored while placing an order for procurement of shirts?
Mean
Median
Mode
Range
Click the correct answer.
The
divides a data into two equal halves.
mean
mode
median
The mode of series of 7 observations is 50. If by mistake the whole series is repeated once again, then the mode of 14 observations so obtained is
.
50
40
70
Krish scored full 100 marks in final mathematics examination. The range of the class is 40. The lowest marks scored in the class are
.
45
60
65
Tally marks are used to evaluate
.
range
mode
frequency
In a bar graph, the scale of 1 unit length represents 100 students. Then, 500 students are represented by a bar of length
units.
5
6
4
Mean is highly affected by
.
lowest value
extreme values
range
A
gives information of more than one type side-by-side.
single bar graph
multiple bar graph
pie chart
The average of 60, 70, 70, 80 and 90 is
.
74
47
64
The data becomes meaningful if we arrange it in ascending or descending order of magnitude called an
.
arithmetic mean
ungrouped data
array
The value which occurs the maximum number of times in data is called the
.
