Question

Answer the question based on the data in the table.

Shirt
Color Size
Large Medium 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?

a. P(shirt is red|shirt is large) = P(shirt is large)
b. P(shirt is blue|shirt is large) = P(shirt is blue)
c. P(shirt is medium and blue) = P(shirt is medium|shirt is blue)
d. P(shirt is medium and blue) = P(shirt is medium)
e. P(shirt is large|shirt is red) = P(shirt is red)

Answer 1

there are 77 large shirts, 42 are red, so
P(shirt is red|shirt is large) \(=\frac{42}{77}\)

Answer 2

Explain this notation.... Lol.

Answer 3

there are 77 large shirts, 165 total so
P(shirt is large)=\(\frac{77}{165}\)

Answer 4

?

Answer 5

if you are seeing gibberish then refresh your browser, you are not seeing the math rendered properly

Answer 6

Still gibberish :) Is it just 42/77 and 77/165?

Answer 7

@satellite73 you still on?

Answer 8

yes those are the two numbers in A

Answer 9

i doubt they are equal though
try C first, it is usually C

Answer 10

Which are not equal, constituting that as an incorrect answer, correct?

Answer 11

right

Answer 12

I've got the second one. 35/77 and 75/165; correct?

Answer 13

idk let me scroll up

Answer 14

yes