The table shows information about the heights, in cm, of a group of Year 9 girls. least height
150 cm
median
165 cm
greatest height
170 cm
This stem and leaf diagram shows information about the heights, in cm, of a group
of 15 Year 9 boys.
DO NOT WRITE IN THIS AREA
15
8 99
16
4 5 7 7 8
Key: 15 8 represents 158 cm
17
0 3 4 4 7
18
02
Compare the distribution of the heights of the girls with the distribution of the heights of
the boys.

On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 10^4 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 10^5 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.