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Problems 1
Problem : The mean of {4, 2, -19, 13, 17, 5x - 15} is 7. What is x?
8
Problem :
The mean of a set of 10 numbers is 67. If the values 99 and
67 are removed from the set, what is the new mean?
Hint: Find the total of the 10 original numbers.
Problem : The median of {52, 10, 3, -6, 25, 6x} is 14. What is x?
3Problem : The median of {9, 12, 16, -3, 5x + 2} is 12. What are the possible values of x? Write your answer as an inequality.
x≥2Problem : The mode of {4, 5, 1, 4, 4, 9, 5, x} is 4. What are the possible values of x? Write your answer as an inequality.
x≠5Problem : Bill picks 5 whole numbers. Four of them are {2, 4, 7, 2}. The range of his numbers is 5. The median of his numbers is 4. The mode of his numbers is 2. The mean of his numbers is not equal to 4.2. What is the fifth number?
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