#### Question 1

The stem-and-leaf plot displays the approximate percentage inflation rate for a number of countries, correct to one decimal place.

2 | 8 | 9 | |||||

3 | 1 | 4 | 4 | 7 | |||

4 | 2 | 4 | 5 | 5 | 7 | 9 | |

5 | 0 | 1 | 1 | 4 | 5 | 7 | 9 |

6 | 2 | 3 | 5 | 6 | 6 | ||

7 | 2 | 4 | 2|8 means 2.8% |

#### Question 2

The weights of 41 male and 39 female students are compared in the back-to-back stem-and-leaf plot below. The weights are given correct to the nearest kilogram.

Females | Males | ||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|

9 | 8 | 3 | |||||||||||||||||||||||||

9 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 4 | ||||||||||||||||||

9 | 8 | 7 | 7 | 7 | 5 | 4 | 1 | 1 | 0 | 0 | 0 | 5 | 2 | 8 | |||||||||||||

5 | 4 | 4 | 4 | 0 | 0 | 0 | 0 | 6 | 1 | 1 | 1 | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 7 | 7 | 8 | 9 | |||||

5 | 2 | 1 | 0 | 0 | 7 | 0 | 0 | 1 | 2 | 3 | 3 | 5 | 5 | 7 | 8 | ||||||||||||

1 | 0 | 0 | 8 | 0 | 0 | 1 | 2 | 3 | 3 | 5 | 5 | 7 | 8 | ||||||||||||||

9 | 0 | 7 | |||||||||||||||||||||||||

10 | 0 | 0 | 9 |