Math, asked by apline2908, 2 months ago

Pls help me I am literally confused

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Answered by optimindian
1

Answer:

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Answered by Surajrai8484
0

Answer:

(a) 29/9

Step-by-step explanation:

Mean of a data is calculated by the formula

x = \frac{x1 \times f1 + x2 \times f2 + ...xn  \times fn}{f1 + f2 + f3....fn}

Where, x1, x2,... represent the data points and f1, f2,... represent the corresponding frequencies of these data points.

So,

x =  \frac{1 \times 4 + 2 \times 2 + 3 \times 3 + 4 \times 4 + 5 \times 5}{4 + 2 + 3 + 4 + 5}

x =  \frac{4 + 4 + 9 + 16 + 25}{18}

x =  \frac{58}{18}  =  \frac{29}{9}

so the mean is 29/9.

Hope this clears your confusion.

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