Question

Can someone help me with this?

Answer 1

http://prntscr.com/d7dnlo

Answer 2

It's not working for me? What's the question

Answer 3

A normally-distributed data set has a mean of 30 and a standard deviation of 5.

What is the area under the standard normal curve for data greater than 25?

Answer 4

What grade is this so i can check my notes

Answer 5

11th

Answer 6

oh

Answer 7

im afraid i can't help I'm only in 8th

Answer 8

sorry

Answer 9

i will ask my brother he's in 11th

Answer 10

It's fine thanks anyway :)

Answer 11

ok I'm really sorry

Answer 12

I'm not really sure but will it be
Z=0.68

Answer 13

how come?

Answer 14

is it because of 25?

Answer 15

Yeah sort of

Answer 16

okay so I'm not completely lost then

Answer 17

then plug the zscore into \[x=z*\sigma+\mu\] ?

Answer 18

yes

Answer 19

so it's 33.4?

Answer 20

for the answer

Answer 21

Yes if u got that then it is

Answer 22

okay thanks :)