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-In a Statistical Investigation of 1000 Families of a City

Question 16

Multiple Choice

-In a statistical investigation of 1000 families of a city, it was found that 60 families had neither a radio nor a TV. 790 families had a radio and 210 families had a TV. How many families in the sample have both?


A) 60
B) 0
C) 90
D) 100

Correct Answer:

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