Each person in a fitness club is going to get a free gift - Edexcel - GCSE Maths - Question 5 - 2019 - Paper 2

One assumption made in this calculation is that the sample of 50 people accurately represents the preferences of the entire fitness club. If the sample is not truly representative, this could affect the accuracy of the estimated number of sports bags needed. For instance, if the preferences of those sampled differ significantly from the rest of the club (e.g., certain demographics favoring other gifts), the estimate for the number of sports bags could be too high or too low, leading to either excess inventory or insufficient supplies.