Question

Shirt
Color LargeMedium Total
Red 42 48 90
Blue 35 40 75
Total 77 88 165

Which inference can be made from the data in the two-way table?
P(shirt is red|shirt is large) = P(shirt is large)
P(shirt is blue|shirt is large) = P(shirt is blue)
P(shirt is medium and blue) = P(shirt is medium|shirt is blue)
P(shirt is medium and blue) = P(shirt is medium)
P(shirt is large|shirt is red) = P(shirt is red)

Answer 1

I dont understand two way tables

Answer 2

@NinjaDevo

Answer 3

ehhh

Answer 4

Sorry...I was working on it a little.
Size--large-medium--total

Red - 42xxxx48xxxxx90
Blue--35xxxx 40xxxx 75

Total -77xxxx 88xxx 165

A)
P( shirt is red / shirt is large) = 42 /77
P( shirt is large) = 77/ 165
A is false

B)
P(shirt is blue|shirt is large) = 35 / 77
P( shirt is blue) = 75/165
B is false

C)
P( shirt is medium and blue) = 40/165
P( shirt is medium / shirt is blue) = 40 / 75

C is false

D)
P( shirt is medium and blue) = 40/165
P( shirt is medium) = 88/165

E)
P( shirt is large / shirt is red) = 42/90
P( shirt is red) = 90/ 165

Answer 5

\(\huge{\uparrow}\) That is what I came up with.

Answer 6

So D or E ?

Answer 7

By the way...
\(\Huge\bf \color{yellow}{Welcome~to~OpenStudy!!}\hspace{-310pt}\color{cyan}{Welcome~to~OpenStudy!!}\hspace{-307.1pt}\color{midnightblue}{Welcome~to~\color{purple}{Open}}\color{blue}{Study!!!!}\)
And I'm going to go with D, because it doesn't really say what red is. Soo..yea.

Answer 8

i think the answer is c P(shirt is medium and blue) = P(shirt is medium|shirt is blue)