Help i dont understand how to do this someone pls explain

[visual solar]

Still need help?

[pastel lintel]

yess pleasee

[visual solar]

Alr so for a what it’s really asking is all the different values x can be with corresponding probability that the random variable x is

So we’re told x can be 1 2 3 or 4

In the q it says P(X=r) = P(X=r+2)

So wen subbing in 1 for X

P(X=1) = P(X=3)

And when subbing in 2 for X

P(X=2)=P(X=4)

Get it so far?

We’re told the probability of 2 is 0.35

[visual solar]

So the probability of 4 is 0.35 too

Probability adds to 1

So 1-0.7 = 0.3

0.3/2 = 0.15

[visual solar]

Both 1 and 3 = 0.15

[pastel lintel]

ohh that makes sense 😭 tysmm i rlly appreciate it

idk how i didnt get that. i was legit doing that but just nothing clicked

thanks!

[visual solar]

Need b and c?

[pastel lintel]

yes please if u dont mind

🙏

[visual solar]

So if you firstly let Y = num of spins that land on 4

You want more than half of the spins to land on the num 4 out of 60 spins

So you want P(Y≥31)

You need your calc here

Your calc gives the less than so you want to find out 1-P(Y≤30)

Dyu know how to put that into your calc?

[pastel lintel]

SO SORRY FOR THE LATE REPLYY

[pastel lintel]

yes u do it on the binomial?

I have that white calculator. forgot the name but its the mode setup then number 7 and it comes up w those binomial and stuff right

[visual solar]

Yeah Binomial CD

Lmk what value u get

[pastel lintel]

rightttttt

[pastel lintel]

I shall. I'm not going to do it now cuz i don't have my calculator w me atm 💔 BUT I WILL KEEP U UPDATED!

[visual solar]

Lol dw

[pastel lintel]

I DID

X-B (60,0.35)
and then did binomial CD and got 0.00589. is that correct? its really small but it seems right i think

thats for b

@visual solar

[visual solar]

Yeah that’s right