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From the table given below, what is mean of marks obtained by 20 students?Marks xiNo. of Students fi31425264758392101Total20

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A central tendency is a central or typical value for a probability distribution. Colloquially, measures of central tendency are often called averages.
The four measures of central tendency are mean, median, mode and the midrange.


From the table given below, what is mean of marks obtained by 20 students?<br><table><tr><th>Marks x<sub>i</sub></th><th>No. of Students f<sub>i</sub></th></tr><tr><td>3</td><td>1</td></tr><tr><td>4</td><td>2</td></tr><tr><td>5</td><td>2</td></tr><tr><td>6</td><td>4</td></tr><tr><td>7</td><td>5</td></tr><tr><td>8</td><td>3</td></tr><tr><td>9</td><td>2</td></tr><tr><td>10</td><td>1</td></tr><tr><th>Total</th><th>20</th></tr></table>






 
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