SOLUTION: I'm learning about central tendency It is the end of the semester and Kyle has one test left. His 4 test grades are 90, 83, 75, 84. What does he need to make on the 5th test to

Question 637459: I'm learning about central tendency
It is the end of the semester and Kyle has one test left. His 4 test grades are 90, 83, 75, 84. What does he need to make on the 5th test to have a mean test grade of 85?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

(90 + 83 + 75+ 85 +x)/5 = 85   |Solve for x 

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