If the median height of the students of a class is 105 cm, it means that

1. the average height of the students of the class is 105 cm

2. maximum number of students in the class are 105 cm tall

3. there are as many students in the class, taller than 105 cm as are shorter than 105 cm

4. none of these

If the median of the data 4, 7, x - 1, x - 3, 16, 25, written in ascending order, is 13, then x is equal to :

1. 13

2. 14

3. 15

4. 16

The mean of 4, 5, 1, 3, 7, 4 is x. The numbers 2, 4, 3, 2, 3, y, 3 have mean x - 1 and median z. Then, y + z = ?

options

1. 4

2. 5

3. 6

4. 7

Which measure of central tendency would be the most appropriate for a shoe dealer to determine the quantity of different sizes that he should order?

1. Mean

2. Median

3. Mode

4. Any of these