In a class, there are 15 boys and 10 girls. Three students are selected at ran

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:

Question Posted / guest

2 Answers
11387 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability..

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

In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability..

Answer / kannan.j

For 1 girl is 1/25 and for 2 boys 2/25

Is This Answer Correct ?

4 Yes

22 No

Post New Answer

More Mechanical Engineering Interview Questions

WHO IS A MITUTOYO,TESA,MAHR MAKE MEASURING INSTRUMENTS SUPPLIER IN INDIA.

1 Answers

why we are using mineral wool as insulation material than glass wool , in india?

0 Answers

What is meant by lmtd?

0 Answers

which is more efficient diesel or petrol engine?

4 Answers

In d thermal power plant why D/A placed on height.

4 Answers

Plz, send me last 5 years Question papers with answers of JE RRB.

0 Answers RRB,

is there a future for a mechanical er. in supplier development field ?

0 Answers TVS,

What is non-destructive test and what is the purpose of it?

1 Answers RRB,

why not maintain 7.0 ph in boiler ,when 7.0 is not acidic & not basic so why maintain 9+ ph?

4 Answers

Explain why you consider yourself suited for the Position:

0 Answers L&T,

why it is difficult to make heavy cuts if a form turning tool is complex in shape?

0 Answers

WHY WE CALL AS I AM HAVING WEIGHT OF 50 KG. USING KG INSTEAD OF NEWTON BCOZ WE KNOW THAT UNIT IS KG

8 Answers

For more Mechanical Engineering Interview Questions Click Here