1.1. Kyle is investigating the heights and the weights of professional basketball players.

He found the weight, in kilograms, of some professional basketball players from 1950 to 1959

Choose the word in the list below that describes weight, in kilograms, as a type of data.

1.2. The incomplete histogram and incomplete grouped frequency table give information about the weights, in kilograms, of the professional basketball players from 1950 to 1959

Use the information in the histogram to complete the table.

1.3. Use the information in the table to complete the histogram.

1.4. Kyle also drew a histogram for the weights of professional basketball players from 2000 to 2009
This histogram was negatively skewed.

Interpret the negative skew of the weights of professional basketball players from 2000 to 2009

1.5. Kyle also collected data about the heights of professional basketball players from 1950 to 1959 and the heights of professional basketball players from 2000 to 2009

The grouped frequency table below gives information about the heights of professional basketball players from 2000 to 2009

The estimate of the mean height for professional basketball players from 1950 to 1959 is calculated to be 190.9cm to one decimal place.

(i) Calculate an estimate of the mean height of basketball players from 2000 to 2009

....................................................... cm

[3]

(ii) Comment on how the mean height of professional basketball players has changed between the two sets of data.

[1]