The masses of $20$ soccer players were measured to the nearest kilogram and this stem-and-leaf diagram was produced.

$\begin{array}{cccccccc}\mathrm{Stem}& \mathrm{Leaf}& & & & & & \\ 4& & 6& & & & & \\ 5& & 4& 0& 0& & & \\ 5& & 7& 8& 9& 5& & \\ 6& & 3& 0& 1& 1& 3& 2\\ 6& & 6& 8& 6& 9& & \\ 7& & 4& 0& & & & \end{array}$          

Key

$4|6=46 \mathrm{kilograms}$

Redraw the stem-and-leaf diagram to make an ordered data set.

The masses of $20$ soccer players were measured to the nearest kilogram and this stem-and-leaf diagram was produced.

$\begin{array}{cccccccc}\mathrm{Stem}& \mathrm{Leaf}& & & & & & \\ 4& & 6& & & & & \\ 5& & 4& 0& 0& & & \\ 5& & 7& 8& 9& 5& & \\ 6& & 3& 0& 1& 1& 3& 2\\ 6& & 6& 8& 6& 9& & \\ 7& & 4& 0& & & & \end{array}$          

How many players have mass of $60$ kilograms or more?

The masses of $20$ soccer players were measured to the nearest kilogram and this stem-and-leaf diagram was produced.

$\begin{array}{cccccccc}\mathrm{Stem}& \mathrm{Leaf}& & & & & & \\ 4& & 6& & & & & \\ 5& & 4& 0& 0& & & \\ 5& & 7& 8& 9& 5& & \\ 6& & 3& 0& 1& 1& 3& 2\\ 6& & 6& 8& 6& 9& & \\ 7& & 4& 0& & & & \end{array}$          

Why is the mode not a useful statistic for this data.

The masses of $20$ soccer players were measured to the nearest kilogram and this stem-and-leaf diagram was produced.

$\begin{array}{cccccccc}\mathrm{Stem}& \mathrm{Leaf}& & & & & & \\ 4& & 6& & & & & \\ 5& & 4& 0& 0& & & \\ 5& & 7& 8& 9& 5& & \\ 6& & 3& 0& 1& 1& 3& 2\\ 6& & 6& 8& 6& 9& & \\ 7& & 4& 0& & & & \end{array}$          

What is the range of masses?

The masses of $20$ soccer players were measured to the nearest kilogram and this stem-and-leaf diagram was produced.

$\begin{array}{cccccccc}\mathrm{Stem}& \mathrm{Leaf}& & & & & & \\ 4& & 6& & & & & \\ 5& & 4& 0& 0& & & \\ 5& & 7& 8& 9& 5& & \\ 6& & 3& 0& 1& 1& 3& 2\\ 6& & 6& 8& 6& 9& & \\ 7& & 4& 0& & & & \end{array}$          

What is the median mass of the players?

The number of electronic components produced by a machine every hour over a $24$- period is:

$$\begin{gathered} 143,128,121,126,134,150,128,132,140131,146,128 \\ 133,138,140,125,142,129,136,130,133,142,126,129 \end{gathered}$$

Using two intervals for each stem, draw an ordered stem-and-leaf diagram of the data.

The number of electronic components produced by a machine every hour over a $24$- period is:

$$\begin{gathered} 143,128,121,126,134,150,128,132,140131,146,128 \\ 133,138,140,125,142,129,136,130,133,142,126,129 \end{gathered}$$

Determine the range of the data.

The number of electronic components produced by a machine every hour over a $24$- period is:

$$\begin{gathered} 143,128,121,126,134,150,128,132,140,131,146,128 \\ 133,138,140,125,142,129,136,130,133,142,126,129 \end{gathered}$$

Find median of the data.

The table shows the heights of 50 sculptures in an art gallery .Find an estimate for the mean height of the sculptures