Being a student and preferring “shark” are not independent events
Step-by-step explanation:
Let A be the event that the selected person is a student and B the event that person prefers sharks.
Total number of students =100
Hence P(A) =
P(B) = Persons who prefers sharks /total persons
=
P(AB) = no of persons who are students and who prefer sharks/total persons
=
P(A)P(B) =
Since P(AB) does not equal P(A) P(B), we find that
A and B are not independent.
Being a student and preferring “shark” are not independent events
No, the ratios are not equivalent to 2/3. To create an equivalent ratio, you need to multiply both numbers in the original ratio by the same number.
I took a test and it said that this was correct. I hope this helps!