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question 12 of 20: you survey 100 customers. you ask a question with 4 …

Question

question 12 of 20: you survey 100 customers. you ask a question with 4 possible responses. each possible response is given by at least 10 customers. what is the maximum number of customers giving any one response?
a) 10
b) 20
c) 40
d) 70

Explanation:

Step1: Subtract the minimum number of customers for the other responses

Since there are 4 responses and each of the 3 other responses has at least 10 customers, the total number of customers for these 3 responses is \(3\times10 = 30\).

Step2: Calculate the maximum number for one response

We have a total of 100 customers. Let \(x\) be the number of customers for the response we want to maximize. Then \(x+3\times10=100\). Solving for \(x\), we get \(x = 100 - 30=70\).

Answer:

d) 70