Question

Mass Frequency

3 6
4 5
5 4
6 8
7 2
8 3
Find the mean of the data in the table.
Give your answer correct to 1 decimal place where appropriate.

Answer 1

The mean of data in the table is 5.5.

| Mass | Frequency |

| 3 | 6 |

| 4 | 5 |

| 5 | 4 |

| 6 | 8 |

| 7 | 2 |

| 8 | 3 |

To find the mean, we add all the values in the "Mass" column and divide by the number of values. There are 6 values in this case, so the mean is (3 + 4 + 5 + 6 + 7 + 8) / 6 = 5.5.