Mode

Q.

What are the advantages and disadvantages of mean, median and mode?

Q. Which of the following statement(s) is/are incorrect?

1. The data obtained in original form are called raw data.
2. The number of times an observation occurs is called its mode.
3. The data collected by the investigator himself/herself is known as primary data.
4. The data collected by someone, other than the investigator, are known as secondary data.

Q.

The average of data values in the data set is called _______ .

1. Mode

2. Range

3. Mean

4. Median

Q.

The ______ is always one of the numbers of the given data.

1. Mode

2. Median

3. Mean

4. Range

Q.

Which of the following is a measure of central tendency?

1. frequency

2. class interval

3. mean

4. Class

Q.

If mean = 28 and median = 30, then find the mode ?

Q. Find the mode of the digits used in writing the natural numbers from 11 to 30.

1. 1
2. 2
3. 3
4. 0

Q.

Is it true to say that the mean, mode and median of grouped data will always be different? Justify your answer.

1. True
2. False

Q. In a perfectly symmetrical distribution, the mode and the mean are 42 and 49 respectively. Find the approximate median of this distribution.

Q. In the left skewed frequency curve, mean is less than ____

1. range
2. variance
3. mode
4. step deviation

Q.

Mode is the value of data which occurs ________ numbers of times.

Q.

The Observation which occur the most in a data, is called:

1. mean

2. median

3. mode

4. range

Q.

The sizes in MB, for nine computer files, are given below:

53 82 61 38 23 41 16 34 42

The files are to be grouped into folders. Each folder may contain a maximum limit of 100 MB.

Use the first-fit method to group the files into folders.

Q. Mode of a data set is x. If each observation of the dataset is decreased by 3, then x will be ______.

1. remain same
2. decreased by 3
3. calculated from the average of new data set
4. multiplied by 3

Q.

Ram appeared in his mid-term examination and his marks in different subjects were:-

$$\begin{array}{cc}\text{Subject}& \text{Marks}\\ \text{Science}& 75\\ \text{Maths}& 85\\ \text{Hindi}& 75\\ \text{English}& 75\\ \text{Social Science}& 65\end{array}$$

What is the mode of marks obtained by Ram?

1. 85

2. 3

3. 75

4. can't say

Q.

Four alternative options are given for each of the following statements. Select the correct option.

A collection of data having more than 3 modes is said to be:

A. uni-mode

B. bi-mode

C. tri-mode

D. multi-mode

Q. The hash function hash: =key mod size and linear probing are used to insert the keys 37, 38, 72, 48, 96, 11, 56 into the hash table with indices 0 _____ 6 The order of the keys in the array are given by

1. 98, 11, 37, 38, 72, 56, 48
2. 98, 56, 37, 38, 72, 11, 48
3. 11, 48, 37, 38, 72, 98, 56
4. 72, 11, 37, 38, 56, 98, 48

Q.

Following are the marks scored by students in an English test worth 45 marks.

31, 26, 23, 26, 33, 34, 32, 33, 33, 37, 33, 54, 30, 45, 25

1. 32

2. 33

3. 34

4. 37

Q.

What is meant by these slashes

Ix+yI

Q. The data consists of: 3, 4, 5, 4, 3, 4, 5. Which of the following statement is true?

1. None of the above
2. Median < mode
3. Median > mode
4. Median = mode

Q.

The runs scored by 11 players in a cricket match are 12, 32, 43, 32, 12, 32, 12, 32, 36, 54, 11. Find the mode of the runs scored by the players. [2 MARKS]

Q.

The height of 10 students in a class are (in cm):-
135, 143, 132, 149, 150, 143, 158, 124, 143, 152
Find the mode.

1. 135
2. 143
3. 150
4. 152

Q. The multiplicative inverse of ${\left(\frac{1}{2}\right)}^4÷{\left(\frac{1}{3}\right)}^4+{\left(-\frac{1}{3}\right)}^3$

Q.

The table below shows the sale of shirts of various sizes in a week.

$$\begin{array}{cccccc}\text{Shirt size}& 38& 39& 40& 41& 42\\ \text{Number sold}& 60& 73& 89& 90& 23\end{array}$$

The size which is demanded the most is

___.

Q. The temperatures for the last 5 days were 31°C, 32°C, 29°C, 26°C and 32°C. The mode of this data set is ______.

1. 32°C
2. 21°C
3. 29°C
4. 26°C

Q. Four integers are added to a group of integers $3,4,5,5$ and $8$ and the mean, median, and mode of the data increases by $1$ each. What is the greatest integer in the new group of integers?

1. $6$
2. $11$
3. $13$
4. $5$

Q.

Out of $5$ brands of chocolates in a shop, a boy has to purchase the brand which is most liked by children. What measure of central tendency would be most appropriate if the data is provided to him?

1. Mean

2. Mode

3. Median

4. Any of the three

Q. A, B, C are three sets of values as given below:
A : 2, 3, 7, 1, 3, 2, 3
B : 7, 5, 9, 12, 5, 3, 8
C : 4, 4, 11, 7, 2, 3, 4
Which one of the following statements is correct?

1. Mean of A = Mode of C
2. Mean of C = Median of B
3. Median of B = Mode of A
4. Median of C = Mode of C

Q. Mode of a statistical data is the value of that variate which has the ______________.

1. equal frequency
2. minimum frequency
3. maximum frequency
4. any frequency

Q. Find difference between mean and median. If the difference between mode and median of a data is 18, use the relation $Mode=3Median-2Mean$.

1. 6
2. 5
3. 4
4. 9