Histograms and Stem-and-Leaf Plots - Questions

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Question 1
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The results for a writing task for 13 girls and 13 boys are:
\begin{array}{r|c|l}
\hline
\text{Boys }&&\text{ Girls}\\
\hline&3&4\,5\,7\\
\hline3&4&1\,5\,8\,8\\
\hline 8\,6\,6\,2&5&5\,5\,7\,9\\
\hline 7\,2\,2\,0\,0&6&0\,9\\
\hline 8\,8\,5&7&\\
\hline
\end{array}

a) Who scored the highest mark, a girl or a boy?
b) What is the median for boys?
c) What is the median for girls?
d) What percentage of boys scored more than 70?.
e) What percentage of girls scored more than 50?
f) Find the mean mark for boys correct to one decimal place

a) Boys  b) \(60\)  c) \(48\)  d)  \(23.08\%\)  e) \(46.2\%\)  f) \(62.08\)

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