Question

more curvessss :)

Answer 1

anyone know the answer? :)

Answer 2

what methods are available to you?

Answer 3

do you have to use z tables? a stat program? a calc like a ti83?

Answer 4

calculator

Answer 5

so youve got a ti83 ... or some tiXX right?

Answer 6

83 yea

Answer 7

youll want to use the "normalcdf" function then

Answer 8

2nd, VARS, and its the second option

Answer 9

alright

Answer 10

normalcdf(zlow,zhigh)

so just enter: -1.2 , .85 )

Answer 11

Wow! now you guys have calculator
We had to use tables :(

Answer 12

i still had to use a table :)

Answer 13

where is the comma ?

Answer 14

i havent attempted an integration of it tho

Answer 15

the comma is above the 7

Answer 16

got it :)

Answer 17

.6872677766

Answer 18

thatll do it

Answer 19

D?

Answer 20

yes, D

Answer 21

how do i know which one goes first?

Answer 22

-1.2 , .85

Answer 23

the format is:

normalcdf( low, high, mean, sd)

Answer 24

since a normal distribution is mean 0, and sd 1; those are default

Answer 25

since -1.2 is smaller than +.85 .... well

Answer 26

ohhh okay gotchaaa thanks! :)

Answer 27

yw