The lengths (cm) of 50 worms of the same species are measured and recorded. The first 45 results are shown in the grouped frequency table below.

a. Explain whether the length of a worm, measured as accurately as possible, is an example of discrete or continuous data. Justify your answer.
b. The remaining five worms were measured and their lengths recorded as:

10.6 cm 

16.1 cm 

13.9 cm 

12.0 cm 

11.9 cm

Copy and complete the grouped tally and frequency table to include the remaining five worms.

c. It is known that females of this species of worm always have length in the range 10–16 cm, whilst males of the species always have lengths in the range 14–20 cm.
i) How many female worms were definitely part of the data collection? Justify your answer.
ii) What is the maximum number of male worms measured as part of this survey?

Transcribed Image Text:

Length (cm) 10-12 12-14 14-16 16-18 18-20 Tally WHI ||||||||| |||| Frequency 17 4