Glen received 6 birthday cards. If he is equally likely to read the cards in any order, what is the probability he reads the card from his parents and the card from his sister before the other cards?

Question

experimentx · Answer

question unclear ... if you mean in order than, it's 1/6x1/5

lilai3 · Answer

i typed dat straight out of my hmwk...-__-

eyust707 · Answer

your homework has just slightly better grammar

lilai3 · Answer

? wut u mean by dat... eyust707?

eyust707 · Answer

hehe im just teasing you.

lilai3 · Answer

tsh..... :)

experimentx · Answer

well, i think you should really be clear about the situation presented by the question

lilai3 · Answer

is it 1/6?
cuz den it says here dat  'he reads the cards from his parents and the cards from his sister b4 da other cards?'
wait..is dat suppose 2 b 1 card altogether or 2..or 3?

experimentx · Answer

then it's 1/30 ... fist one from parent THEN from sister before others means he reads in specific order

lilai3 · Answer

u're absolute ( from your instinicts)  that the asnwer is 1/20... right?

anonymous · Answer

$$\left(\frac{2}{6}\right)\left(\frac{1}{5}\right)\text{=}\frac{1}{15}$$The probability of selecting a card either from the parents or the sister is 2/6.  The probability of selecting the other card from the sister or from the parents is 1/5.

lilai3 · Answer

thank you very much!

anonymous · Answer

Your are welcome.  Thank you for the medal.

lilai3 · Answer

yw  :)

lilai3 · Answer

and good nite, amigos (btw, don't think i'm spanish... cuz i'm not!)