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Answer :
Final answer:
To find the value of x, we calculate the frequency of rating 7 and multiply it by the total number of ratings.
Explanation:
To find the value of x, we need to determine the total number of ratings given by the 20 customers and then calculate the frequency of rating 7.
The total number of ratings given is 20. Since the relative frequency of rating 7 is 0.25, we can multiply the total number of ratings by 0.25 to find the frequency of rating 7.
Using the formula:
Frequency of rating 7 = Total number of ratings * Relative frequency of rating 7
Frequency of rating 7 = 20 * 0.25 = 5
So, the value of x in the given ratings is 5.
Learn more about Relative frequency here:
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