Question

help help help last oneee

Answer 1

@Vocaloid

Answer 2

you would find the corresponding probability for z < 0.85 and then minus the probability for z < -1.2

Answer 3

0.3023

Answer 4

and then

Answer 5

hm that's not quite right

Answer 6

https://www.zscorecalculator.com/

Answer 7

first use the left option

then type in z = -1.2

Answer 8

okay and then for right?

Answer 9

0.85?

Answer 10

in this case you would use left for both

Answer 11

let me try and show why

Answer 12

OKAY SOFOR THE NEXT OPTION WOULD I SELECT LEFT RIGHT DIFF AREAS?

Answer 13

no, use the left option for both values

Answer 14

so you would agree that this black area represents the total area to the left of z = 0.85 yes?

Answer 15

Yes

Answer 16

and you would agree that this new black area represents the area to the left of z = -1.2 right?

Answer 17

68.73?

Answer 18

right =)

Answer 19

yeah that's what I got too

Answer 20

since the shaded area is big area minus smaller area we use the left option for both z scores and then subtract

Answer 21

So choice A

Answer 22

yup

Answer 23

Thank you !!!!!!!!!!!!!!!!!!!!!!!!!!! I wish I could send you some homemade cookies to thank you =)