cam someone please help me with a assignment this determines my graduation!!!!! please!!

Question

anonymous · Answer

attachment

anonymous · Answer

@Mo_Moo  - check the message I just sent you...

anonymous · Answer

i need help on that screen shot i took

anonymous · Answer

@mathstudent55

aaronq · Answer

Hm this looks tedious, but you can work it out with the conditional probability formula.

    $\sf P(A|B)=\dfrac{P(A\cap B)}{P(B)}$

For example, ill do the first one,

 $\sf P(shirt~is~red|shirt~is~large)=\dfrac{\dfrac{42}{165}}{\dfrac{90}{165}}=0.444$

$\sf P(shirt~is~large)=\dfrac{77}{165}=0.467$

they're not equal, so A is not the answer.

anonymous · Answer

attachment

anonymous · Answer

@aaronq

aaronq · Answer

have you worked with combinations yet?

make a fraction: $\sf \dfrac{number~of ~possible~combinations ~of spades}{all ~possible ~combinations~in~which~you~can~pick~2~cards}$