Is an interquartile range different to a normal range?

Yes, the normal range of data is the greatest value in the data set minus the smallest value in a data set whereas the interquartile range is the upper quartile minus the lower quartile. Remember that normal range uses all anomalous/extreme values of data!

Yes, the range is the difference between the highest data value and the lowest data value, whereas the interquartile range is the difference between the upper quartile value and the lower quartile value.

The interquartile range is the upper quartile takeaway the lower quartile, whereas a range is the highest number takeaway the smallest number.