The numbers 3, 5, 7 and 9 have their respective frequencies x – 2, x + 2, x – 3 and x + 3. If the arithmetic mean is 6.5 then the value of x is
Question
Solution 1
To solve this problem, we need to use the formula for the arithmetic mean, which is the sum of all numbers divided by the count of numbers.
The sum of all numbers can be calculated as follows:
Sum = (3*(x-2)) + (5*(x+2)) + (7*(x-3)) + (9*(x+3))
The count of numbers is the sum of all frequencies, Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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