3 years ago

Help me please I don’t understand

Mathematics

1 answer:

Korvikt [17]3 years ago

4 0

Worksheet is asking you for the numbers and tell you where they are placed.

Across:

1: 123

4: 354

6: 789

7: 926

9: 496

11: 351

13:435

15:872

17:503

19: 214

20: 914

21: 37

22: 479

Down:

1: 187

2: 339

5: 492

8: 653

10: 999 - 15 = 984

12: 137

14:554

15:864

16:213

18:397

21:352

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The mean score of 8 players is 14.5. If the highest individual score is removed the mean of the score of the remaining 7 players

AfilCa [17]

Answer:

The highest score is 32.

Step-by-step explanation:

We are given the following in the question:

The mean score of 8 players is 14.5.

Let x denote the highest score.

If x is removed, the mean of the score of the remaining 7 players is 12.

Formula for mean:

$\bar{x} = \dfrac{\displaystyle\sum x_i}{n}$

Putting values, we get:

$14.5 = \dfrac{\displaystyle\sum x_i}{8}\\\\\Rightarrow \displaystyle\sum x_i = 116\\\\12 = \dfrac{\displaystyle\sum y_i}{7}\\\\\Rightarrow \displaystyle\sum y_i = 84\\\\\displaystyle\sum y_i = \displaystyle\sum x_i -x \\\\84 = 116 - x\\\Rightarrow x = 32$