In a class, there are 15 boys and 10 girls. Three students are
selected at random. The probability that 1 girl and 2 boys are
selected, is:
Answers were Sorted based on User's Feedback
Answer / md.vali hasan
total ways to select three people is 25C3.
2 boys can be selected by 15C2 ways.
1 girl can be selected by 10C1 ways.
so probability of 1 girl and 2 boy are selected is-
15C2*10C1/25C3 = 0.456 .
| Is This Answer Correct ? | 21 Yes | 2 No |
Why do not use flywheel in petrol engine
What is the name given to ratio of actual cycle efficiency and ideal cycle efficiency?
how to calculate bearing pre-load?
Give an introduction to bourden pressure gauge?
HOW THE POWER INTERMEDIATE WITH TON OF REFRIGERATION(TR) COMPRESSORS ? HOW THE POWER IMPORTANCE TO COMPRESSOR FOR THE LOAD ?
What is the melting teparature of the boiler fusible plug? Which is the metal used for boiler manufacturing?
why we are using mineral wool as insulation material than glass wool , in india?
800A bus-coupler system
What is the purpose of having an inclined portion on the dam site exactly behind the dam opening????
interview questions asked in BHEL posteded in website
What type of pump is lubricator pump?
Properties of F.O. the cause damage on auxiliary boiler.
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)