I need help asap

[still violet]

You have a tree, and each node is tied to two groups of people. If we suppose that we have 50 students in the class and 27 failed (What is given in the question) you have to classify the rest and fill the remaining groups.

[hollow cargo]

this is for statistics right?

@fluid spruce

also the 27 that you wrote is wrong

[celest drum]

Let's say I give a test to 10 people and 2 pass.

We can draw it out like the figure you've been given. I'd have 10 as the leftmost circle entry. The pass circle would have 2 in it. To figure out fail, realize there are only 10 people taking this test. 2 pass. 10 - 2 = 8 that must fail. So the fail box is 8.

Now, let's say a test was given and we know that 5 people passed and 3 failed. How many people took the test?

Well, we'd add up the people: (5 passed) + (3 failed) = (8 total people took this test).

If you can understand this reasoning, then you should be able to work through the boxes in the diagram.

The trick for your problem is that there are two tests. So instead of having one tier to go through (one test), you have to work through two. It's easier than it looks. Think about the diagram, what the boxes represent, and give it a try.

[fluid spruce]

.close

[twin hearth]

Solved

Post marked as solved by @fluid spruce.

Use .unsolved if this was a mistake.

[fluid spruce]

.unsolve

[fluid spruce]

i get that

but idk how to do it

this is what i can do

@here