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23 December, 08:03

What is the mean?

Round to the nearest tenth if needed.

Value

Frequency

1 2 3 4 5

713 2 2

O 2.4

O

3



2

O

7.2

+3
Answers (1)
  1. 23 December, 11:39
    0
    the answer is 2.4

    Mean=/frac{/sum fx}{/sum f}

    Where:

    f is the frequency

    x is the value

    /frac{3+7+5+6+2+x}{6} = 5

    23+x=30

    x=30-23

    x=7

    /therefore Mean=/frac{1 / times 7 + 2 / times 1 + 3 / times 3 + 4 / times 2 + 5/times 2}{15}

    =/frac{7+2+9+8+10}{15} = / frac{36}{15} = 2.4

    Therefore, the mean = 2.4

    sorry if its a bit confusing
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