To begin a stem and leaf diagram you will need to first order the data given to you into the question. The data in your stem and leaf must be in ascending order and grouped into tens. Draw the table separating the tens from the units. Fill in the first column with the tens you need e.g. write a 3, 4 and 5 in the first column. Then put in the units in order to the right of the ten, e.g. 34,36,37 will be separated into:3| 4, 6, 7A key is required to get full exam marks on this question, one example will be enough.Key:3|4 = 34