Question

Please answer this question
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Answer 1

$Mean = \frac { sigma f_{i}x_{i} }{sigma f_{i}} \\ \\ Mean = \frac {120+260+261+240+280}{5+10+9+8+8} \\ \\ Mean = \frac {1161}{40} \\ \\ Mean = 29.02 \\ \\ Mode = 26 \\ \\ n = 40 \\ \\ Median = \frac {n}{2}) + (\frac {n}{2} + 1) \\ \\ Median = \frac {40}{2} + 21 \\ \\ Median = \frac {20th + 21th term}{ 2} \\ \\ Median = 29$