Question

The number of kilometers traveled by Janifer is as follows: $9,1,8,7,8,1,9,2,8$

Which two number of kilometers are traveled by Janifer equal number of times?

• A. 2 km
• B. 9 km
• C. 1 km
• D. (b) and (c) above.

Answer 1

The correct option is D (b) and (c) above.

We are required to plot a frequency table for the given data set.

For example, $9\text{km}$ is occuring twice.
$\therefore$ The frequency correcponding to $9\text{km}$ is $2.$

The frequency table of the data set is as follows: Distance Travelled (km) Frequency

$1$	$2$
$2$	$1$
$7$	$1$
$8$	$3$
$9$	$2$

HHere, we can observe that both $1\text{km}$ and $9\text{km}$ are occurring twice.

Hence, the required answer is $1\text{km}$ and $9\text{km}.$