The mode of a frequency distribution can be determined graphically from :

1. Histogram

2. Frequency polygon

3. Ogive

4. Bar graph

If the mode of the following data is 7, the value of k is :

2, 4, 6, 7, 5, 6, 10, 6, 7, 2k + 1, 9, 7, 13

1. 2

2. 3

3. 4

4. 7

Consider the following distribution :

The sum of lower limits of the median class and the modal class is :

1. 15

2. 25

3. 30

4. 35

The relation connecting the measures of central tendency is:

1. Mode = 2 Median - 3 Mean

2. Mode = 3 Median - 2 Mean

3. Mode = 2 Median + 3 Mean

4. Mode = 3 Median + 2 Mean