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57. There is a school were 60% are girls and 35% of the girls are poor. Students are selected at random, what is the probability of selecting a poor girl out of total strength? [SASTRA, JNTUK]
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- Let take 100 students
outoff 100 60 are girls
among girls poor girls are =35% 0f 60=21
pbt of selecting poor girl in total strength=21/100 - 9 years agoHelpfull: Yes(13) No(2)
- consider there are 100 menbers in school then in that 60% are girls means 60 mem girls are tthere
then 35% are poor in that 60 mem so 35% of 60=35/100*60=21
the probability is=21/100 - 9 years agoHelpfull: Yes(7) No(2)
- Let total num of student in a school are 100
den num of girls=60
and 35% of 60=21
so probablity of selecting poor girl out of total strenth will b 21/100.
- 9 years agoHelpfull: Yes(2) No(0)
- assume there are 100 students and out of them 60 are girls
35% of girls are poor = 35% of 60 = 21
thus the probability of selecting a poor girl out of total strength= 21/100
so ans = 21/100 - 9 years agoHelpfull: Yes(2) No(0)
- 35% of 60=21
Probability of selecting a poor girl=21/60
ans.7/20
- 9 years agoHelpfull: Yes(0) No(5)
- Take the sample is 100.
That 60% were girls.
out of 100%, 35% of the girls are poor
The probability of selecting a poor girl in total is = 35/100 - 9 years agoHelpfull: Yes(0) No(3)
- 21/100
Let 35% of 60% of 100 =21
so 21/100 - 9 years agoHelpfull: Yes(0) No(0)
- Assume there are a total of 100 students out of which 60% are girls , so no: of girls =60
and 35% of 60 is 21.
so the probability of selecting poor girl is 21/100
=0.21 - 9 years agoHelpfull: Yes(0) No(1)
- Poor girls 35percerntage
Total 35×60/100=21/100
This is the ans - 6 years agoHelpfull: Yes(0) No(0)
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