Question

The contingency table below gives the counts of students by activities and gender.

Band Sports Debate Total
Male 78 390 4 472
Female 78 195 8 281
Total 156 585 12 753

If a student is randomly selected, what is the probability that a student is male and on the debate tea

Answer 1

there is 472 males and 4 in debate over all number of people is 753

Answer 2

there is two factors here male and debate right? @Hero we will do it in fractions becsause its easier that way ... i think unless you dont want to do more math if not its cool

Answer 3

Okay, so basically, what you want to do is start by creating your probability fraction for the given situation. The basic concept of a fraction is always

\(\dfrac{\text{Part}}{\text{Whole}}\).

So that's what we have to figure out here for our probablity fraction. What is the part? and What is the whole?

In other words, before you start, you should create something like this:

\(\dfrac{\text{Number of students who are male and on debate}}{\text{Total Number of Students In The School}}\)

So in other words, when you come up with the numbers for this, there should only be two numbers you come up with. One for the top fraction and one for the bottom fraction. But you posted three numbers.