Question

The mean of 10,12,16,20,p,26 is 17.Find the value of p.

Answer 1

Answer: " p = 18 " .
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Step-by-step explanation:
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The [arithmetic] mean =

{the sum of all the values in the data set}
divided by {the number of values in the number set} ;
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→ 17 = (10 + 12 + 16 + 20 + 26 + p) / 6 ;

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→ (10 + 12 + 16 + 20 + 26 + p) = 17 * 6 ;

→ (p + 84) = 102

Subtract "84" from each side of the equation;
to isolate "p" on one side of the equation; & to solve for "p" ;

→ p + 84 – 84 = 102 – 84 ;

→ p = 18 .
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The answer is: " p = 18 " .
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Answer 2

there are 6 numbers total

17 * 6 = 102

10 + 12 + 16 + 20 + 26 = 84

p = 102-84 = 18

p = 18