A market researcher collecting data on 100 households finds that:
![A Market Researcher Collecting Data On 100 Households Finds That class=](https://ph-static.z-dn.net/files/d76/63f7186d364406caa46abd727a82d711.jpg)
Answer:
a. 19
b. 35
c. 37
Step-by-step explanation:
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