Could anyone please help??

[forest heath]

Do you need still help?

[icy gust]

yes plzz

[forest heath]

For (a) any idea?

[icy gust]

I was thinking of using the mean formula and then solve for p does that work

[forest heath]

yes for b

but you need the amount of people (a)

so any idea what tells us the amount of students, in terms of p?

i think i scared him off

[icy gust]

Nahh I'm here haha sorry

so i think I can get a lmao

[forest heath]

so how?

[icy gust]

sorry I meant I don't think

[forest heath]

oh

well what about the word "frequency"

tells us how often a grade is assigned to some student

which basically tells us how many students there are

like you can see that for example 4 people got the grade 2

and that's how you got about it for (a)

[icy gust]

wait I still don't get it

[forest heath]

frequency what does the word mean to you?

[icy gust]

the number of times it occurs

[forest heath]

so

in our context

[icy gust]

so p occurs 5 times

[forest heath]

no

it means "p" amount of students got the grade 5

[icy gust]

sorry no 5 occurs p times

[forest heath]

yes

or basically "p" amount of students were assigned the grade 5

we'll figure the amount out in (b)

how many students for grade 3?

[icy gust]

7

[forest heath]

yea

and that's how you do it for each column

and then you sum each amount up and there you got the total amount of students in terms of p

[icy gust]

so sum up all students and divide by 5

[forest heath]

no

[icy gust]

sorry if i'm wrong

[forest heath]

why divide by 5?

where did that come from?

[icy gust]

cause it's grade 5

for p

[forest heath]

no

just go through each coloumn in the frequency row and count the total

1 4 7 9 p 9 4

total?

[icy gust]

34 p

[forest heath]

34 + p

[icy gust]

ahh ok

[forest heath]

p is some unknown amount that still need to be added up

how much p is we will figure this out soon

So total amount of students: 34 + p

Now to (b)

You already mentioned using the arithmetic mean theorem?

[icy gust]

b is just the average and solve for b

[forest heath]

yes

so we use arithmeteic mean theorem

[icy gust]

ok perfect

and so a is just 34 + p

[forest heath]

yes amount of students

So for b

any idea how to proceed?

[icy gust]

for b I do 1 x 1 + 2 x 4 + 3 x 7 etc

divided by all the frequncy right

[forest heath]

wow how'd you figure that out lol

[icy gust]

so 34 + p

[forest heath]

very nice

[icy gust]

Hahaha I'm not that dumb

but my maths is bad

[forest heath]

tbh i thought first haha

[forest heath]

no it's not now i know

it's more like a misconception thing where you couldnt tell what to do rather

anyway

So what do we get

[icy gust]

I don't have my calculator so idkkk

[forest heath]

haha ok

[icy gust]

anyways I have my mock tmrw so I'll tell u how it goes

yess exactly

[lunar hearth]

adonhs

[forest heath]

Now knowing what do you need to do?

To find the amount students p?

There is one information about the text

you there?