Answer:
Simple random sampling survey method
Step-by-step explanation:
A simple random sampling is an unbiased survey technique Hence it will represent all the parts of the city's population.
In statistics, a simple random sample is a subset of individuals (a sample) chosen from a larger set (a population). Each individual is chosen randomly and entirely by chance, such that each individual has the same probability of being chosen at any stage during the sampling process
Hello I think the answer would be three.
1 pack has 5 seperate packs, each with 10 pieces
=>50 pieces
50*3=150 pieces of gum
10 20 30 40 50
15 30 45 55 70
20 40 60 80 100
24 48 72 96 120