ISASP Grades 6-8 Statistics and Probability. Practice it free.

A basketball player recorded points scored in each of $16$ games. The frequency table shows the results.
$\begin{array}{c|c} \text{Points scored} & \text{Number of games} \\ \hline 18 & 2 \\ 21 & 3 \\ 24 & 4 \\ 27 & 4 \\ 30 & 3 \end{array}$

What is the mean number of points scored per game?

A team answered the statistical question "How many laps did you run?" The data are $8, 2, 9, 3, 6$. What is the median of the data?

Which of these is NOT a statistical question?

A weather station records five daily rainfall amounts, in inches: $1$, $2$, $3$, $4$, and $5$. The lowest amount, $1$ inch, is removed from the data set. How does this affect the mean?

The ages, in years, of seven students are $10\textsf{,}$ $16\textsf{,}$ $14\textsf{,}$ $8\textsf{,}$ $13\textsf{,}$ $15\textsf{,}$ and $8\textsf{.}$ What is the mean age?

Find the range of 4, 9, 2, 7.

Five quiz scores are $92\textsf{,}$ $68\textsf{,}$ $75\textsf{,}$ $88\textsf{,}$ and $77\textsf{.}$ What is the median score?

A trend line for hours studied $x$ and quiz score $y$ is $y = 4x + 62$. What score does the line predict for a student who studies $3$ hours?