Answer: See explanation
Step-by-step explanation:
a. what is Matilda's error?
The error by Maltida was that she mistakenly thought the population was the sample size. In this case, the 900 visitors aren't the sample but the population.
The population is referred Tina's the entire pool where the sample is picked by the researcher.
b. what is the actual sample
The actual sample is 45. The sample is the smaller version which can be gotten from the entire population. It is a subset from the population of 900 visitors. Therefore, based on the question, it is 45.
