WAEC - Mathematics (2006 - No. 11)
The ratio of boys to girls in a class is 5:3. Find the probability of selecting at random, a girl from the class
\(\frac{1}{8}\)
\(\frac{1}{3}\)
\(\frac{3}{8}\)
\(\frac{3}{5}\)
Spiegazione
ratio of boys to girls = 5:3
total = 5 + 3 = 8
Pr(girl) = \(\frac{3}{8}\)
total = 5 + 3 = 8
Pr(girl) = \(\frac{3}{8}\)