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There are 40 students in a class of whom25 are girls and 15 are boys. The classteacher has to select one student as aclass representative. He writes the nameof each student on a separate card, thecards being identical. Then she putscards in a bag and stirs them thoroughly.She then draws one card from the bag.What is the probability that the namewritten on the card is the name of (i) agirl? (ii) a boy? |
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Answer» The probability of the name written on cars is the name of girl = 25/40 =5/8 The probability of the name written on cars is the name of boy = 15/40 =3/8 thanks 😘😘😘😘😊 masi is the correct email address for me to us din k ly to us din k exam is at home is the correct address for the pen 😁😊😁😁😀😊 masi is the question is do we need a new job or not I love u my I am not 💯😘😘😘😘😘😘 Total students=40number of boys=15number of girls=25(i)P(a girl)=25/40=5/8(ii)P(a boy)=15/40=3/8 probability of girl=5/8probability of boy=3/8 1) Name written on a card is of a girl? Favourable outcome= 25Total possible outcome= 40 P(E) = Favourable outcome/Total possible outcome P( name is of a girl) = 25/40 P(name is of a girl) =5/8 Similarly probability of getting a boy is 3/5 |
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