Question

Stats help please? @hartnn
I have no idea where to start. It'd be great and much appreciative if I did get some help.

Answer 1

you will win $35 when you guess the correct number, right?

Answer 2

so,
say you selected one number out of those 38 numbers,

what is the probability that the number you selected actually matches with the number in where the ball fell?

Answer 3

I don't know honestly... I'm kind of confused with everything. Like how would I find that probability?

Answer 4

it is like selecting 1 correct number from 38.

same as choosing 1 option from 38 available options

Answer 5

when we choose 1 from 'n' available options,
the probability is just 1/n

Answer 6

So, 1/38 right?

Answer 7

yesss

Answer 8

thats P(x) for c = 35

Answer 9

x=35**

Answer 10

So I'd just put it in decimal form then, right? Cuz it says to round to 3/4 decimals right?

Answer 11

1/38 = 0.0263

Answer 12

Yeap.

Answer 13

So then I'd kinda do the same for -1 then?

Answer 14

we lose when it is -1.

total probability is 1
probability of winning + probability of loosing = 1

and we already know probability of winning

Answer 15

so
P(x) for x = -1 is just (1- P(x) when x=35)

Answer 16

So, 1-.0263?

Answer 17

yes

Answer 18

.9737

Answer 19

\(\huge \checkmark \)

Answer 20

Yay thank you sooooo much!!! I really do appreciate your help! Lifesaver!! Thanksssssssss

Answer 21

welcomessss

Answer 22

Hahha, I have more though.

Answer 23

post them :)

Answer 24

This is kinda parts to this original question. The next question is asking for:
B:)) "Determine the mean and standard deviation of the random variable X. Round your results to the nearest penny."