A zoologist weighs a sample of mice found in a field. 

The mass (g) of 50 mice is recorded, grouped and shown in the two-way table below. 

Unfortunately the zoologist’s pen leaked during the data collection. a It is known that as a population 26% are males with a mass of 100–120g and there are twice as many males as females with a mass of 120–140g. Assuming the sample is representative of the whole population, copy and complete the table. b Draw a compound grouped frequency diagram of the data.

Transcribed Image Text:

Mass (g) 60-80 80-100 100-120 120-140 Male 1 5 Female 4 10 8 00