Question

In a school there are 50 students participated in a sports event . Find the probability to win the event for the students whose numbers is (1) multiple of 4 (2) Prime number (3) Composite numbers​

Answer 1

(1) p(e)=12/50=6/25

(2)p(e)=14/50=7/25

(3)p(e)=35/50=7/10

Answer 2

1)no.of favorable outcomes(n)=12{4,8,12,16,20,24,28,32,36,40,44,48}

Total no.of outcomes (t)=50

$probability = \frac{n}{t}$

$= > \frac{12}{50}$

$p = \frac{6}{25}$

2)

no. of favorable(n) outcomes=12{2,3,5,7,11,13,17,19,23,29,31,

37}

Total no. of outcomes(t)=50

$p = \frac{12}{50} = \frac{6}{25}$

3)

no. of favorable (n)=38{4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28,30,32,33,34,35,36,38,39,40}

t=50

$p = \frac{38}{50 } = \frac{19}{25}$