Ski course

From 96 children who participated in the ski course were 21 excellent skiers, 30 good and 13 average and the rest were beginners.

Calculate this data in percentages.

Final Answer:

p₁ =  21.9 %
p₂ =  31.3 %
p₃ =  13.5 %
p₄ =  33.3 %

Step-by-step explanation:

$$\begin{gathered} n=96 \\ {p}_1=\frac{21}{n}\cdot 100=\frac{21}{96}\cdot 100=\frac{21\cdot 100}{96}=\frac{2100}{96}=21.9\% \end{gathered}$$

$p_2=\frac{30}{n}\cdot 100=\frac{30}{96}\cdot 100=\frac{30\cdot 100}{96}=\frac{3000}{96}=31.3\%$

$p_3=\frac{13}{n}\cdot 100=\frac{13}{96}\cdot 100=\frac{13\cdot 100}{96}=\frac{1300}{96}=13.5\%$

$p_4=100-p_1-p_2-p_3=100-21.875-31.25-13.5417=33.3\%$

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