Mathematics Past Questions and Answers

The mean of 2 - t, 4 + t, 3 - 2t, 2 + t and t - 1 is

\(\begin{array}{c|c}
Values & 0 & 1 & 2 & 3 & 4 \\
\hline
Frequency & 1 & 2 & 2 & 1 & 9
\end{array}\)
Find the mode of the distribution above

Find the median of 5,9,1,10,3,8,9,2,4,5,5,5,7,3 and 6

Find the standard deviation of 5, 4, 3, 2, 1

In how many ways can a team of 3 girls be selected from 7 girls?