Sunday

March 1, 2015

March 1, 2015

Posted by **MW** on Thursday, May 21, 2009 at 9:32pm.

Find the probability thatc chips A and B are selected.

- probability -
**Reiny**, Thursday, May 21, 2009 at 11:39pmnumber of ways to draw 5 chips from 7 = C(7,5)

= 21

number of ways to draw the A and B and any 3 others

= 1xC(5,3) = 10

so prob of A and B among the 5 = 10/21

**Answer this Question**

**Related Questions**

Probability PLEASE HELP - A box contains exactly five chips, three red and two ...

Probability - A box contains exactly five chips, three red and two white. Chips ...

math - an urn contains 3 blue chips and 7 red chips. sequentially draw 3 chips ...

statistics - an urn contains 3 blue chips and 7 red chips. sequentially draw 3 ...

Stats - Five chips numbered 1-5 are placed in a jar. Two chips are drawn. Let Z...

algebra - if i had 1bag containing 6red chips & 5 yellow chips. another bag ...

Probability - an urn contains 40 red chips and sixty white chips. six chips are ...

Math - I need help with these probability problems. 1). Five chips are selected ...

math/probability - A bag contains 7 red chips and 10 blue chips. Two chips are ...

college - A box contains 4 red and 3 blue chips. What is the probability when 3 ...