10. Representing Data

For the given frequency table:

a

Complete the cumulative frequency column.

Score $\left(x\right)$(x) |
Frequency $(f)$(f) |
Cumulative Frequency $(cf)$(cf) |
---|---|---|

$1$1$\to$→$4$4 | $4$4 | $\editable{}$ |

$5$5$\to$→$8$8 | $5$5 | $\editable{}$ |

$9$9$\to$→$12$12 | $9$9 | $\editable{}$ |

$13$13$\to$→$16$16 | $5$5 | $\editable{}$ |

$17$17$\to$→$20$20 | $4$4 | $\editable{}$ |

b

Calculate the total frequency.

c

Identify the class size.

Easy

Approx 2 minutes

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represents information in symbolic, graphical and tabular form

develops and carries out simple statistical processes to answer questions posed