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Answer :
Final answer:
The value of x is 5.
Explanation:
The relative frequency of rating 7 is given as 0.25. This means that out of the 20 customers, 25% of them gave a rating of 7. To find the actual count of ratings equal to 7, we multiply the relative frequency by the total number of customers. Let's call the count of ratings equal to 7 as 'x'. So, 0.25 = x/20. Solving this equation, we find that x = 5. Therefore, the value of x is 5.
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