Question

40)

Answer 1

Answer:

0.52

Step-by-step explanation:

70% of the students  chose to play on the play ground are boys.

60% of them are boys. So , logically 40% are girls.

40% of 60% is : $\frac{7}{10}$ * $\frac{4}{10}$ = $\frac{28}{100}$

30% of the students stayed inside,

80% of them are girls .

80% of 30% is : $\frac{8}{10} * \frac{3}{10} = \frac{24}{100}$

So 28%+ 24% = 52 %

There is a 0.52 probability that the student is a girl