Julie collects data on the distances travelled by snails and slugs over the duration of ten minutes. She records a summary of her findings as shown in the table below.
Median | Interquartile range | |
Snails | 7.1 cm | 3.1 cm |
Slugs | 9.7 cm | 4.5 cm |
Compare the distances travelled by snails and slugs over the duration of ten minutes.
For average, compare medians - remember to comment with numbers, then in context.
Slugs have the higher median (9.7 > 7.1) which suggests that on average slugs move further than snails
For spread, compare interquartile ranges - again, comment with numbers, then in context.
Snails have the lower interquartile range (3.1 < 4.5) which suggests that there is less variation in the distances travelled by snails