The smallest number is

The largest number is

The range

Class limit

Sample size

 Comment 1

Class boundaries are the midpoints between the upper class limit of a class and the lower class limit of the next class in the sequence.

Each class has an upper and lower class boundary.

For the first class :1435-1457

The lower class boundary is the mid point between 1434 and 1435.

(1434+1435)/2 = 1434.5

The upper class boundary is the mid point between 1457 and 1458.

(1457+1458) = 1457.5

For the second class :1458-1480

The lower class boundary = (1457 + 1458)/2 = 1457.5

The upper class boundary = (1480+ 1481)/2 = 1480.5

For the third class: 1481 - 1503

The lower class boundary = (1480 + 1481)/2 = 1480.5

The upper class boundary = (1503 + 1504)/2 = 1503.5

For the fourth class: 1504 - 1526

The lower class boundary = (1503 + 1504)/2 = 1503.5

The upper class boundary = (1526 + 1527)/2 = 1526.5

For the fifth class: 1527 - 1549

The lower class boundary = (1526 + 1527)/2 = 1526.5

The upper class boundary = (1549 + 1550)/2 = 1549.5.

 Comment 2