Question

The below data signify the weight (in lb) of $28$ students in a class.

The range of the given weights is .

Answer 1

The weights (in lb) of $28$ students are

The range of a data set is the difference between maximum and minimum values present in the set.

Here, the maximum weight of student is $78$ lb and the minimum weight is $48$ lb.

$\therefore$ The range of weights of $28$ students is $78-48=30$ lb.