willowmeyer12 willowmeyer12
  • 19-04-2020
  • Mathematics
contestada

Please I really need help! Can you answer A and B and I will mark you as brainliest!

Please I really need help Can you answer A and B and I will mark you as brainliest class=

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leonardo7500
leonardo7500 leonardo7500
  • 19-04-2020

a) The average arithmetic mean is calculated by adding all of the values and then dividing the sum by the total number of values.

[tex]\frac{198+199(3)+200(2)+201(5)+202(2)}{13} =200.3[/tex]

Which is 200.3.

b) Assume that the new average mean is 201, then

[tex]201 = \frac{198 + 199(3) + 200(2) + 201(5) + 202(2)+x}{14}[/tex]

Solve for x.

[tex]2814= 2604x[/tex]

Divide by 2604 to solve for x.

[tex]\frac{2814}{1604} = x = 1.75[/tex]

So the height of the new player is 175 cm.

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