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An experiment was carried out to investigate the growth rate of pigs - Scottish Highers Biology - Question 13 - 2018
Question 13
An experiment was carried out to investigate the growth rate of pigs. They were put into five groups of eight pigs, each with the same average initial body mass. Eac... show full transcript
Worked Solution & Example Answer:An experiment was carried out to investigate the growth rate of pigs - Scottish Highers Biology - Question 13 - 2018
Step 1
Each group contained eight pigs.
Answer
The reliability of the results is increased by having each group contain eight pigs because this helps to control for individual variations in weight and growth rate. By using a fixed number of pigs in each group, the experiment can ensure that the average results from each diet group are more reflective of the diet's effects rather than individual differences among the pigs.