SOLUTION: Find the area under the standard normal curve which lies (a) to the left of 0.47 (b) to the right of z = -0.06 (c) to the right of z = 2.53 (d) to the left of z = -1.31 (

Algebra ->  Probability-and-statistics -> SOLUTION: Find the area under the standard normal curve which lies (a) to the left of 0.47 (b) to the right of z = -0.06 (c) to the right of z = 2.53 (d) to the left of z = -1.31 (      Log On


   

Question 1119283: Find the area under the standard normal curve which lies
(a) to the left of 0.47
(b) to the right of z = -0.06
(c) to the right of z = 2.53
(d) to the left of z = -1.31
(e) between z = 0.72 and z = 1.59
(f) between z = -0.11 and z = 2.48

Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
Note to get the E in -1E99 or 1E99 on your TI-83 or 84, 
press 2ND, COMMA key between the x² key and the "(" key.

Find the area under the standard normal curve which lies
(a) to the left of 0.47 
On your TI-83 or 84 press 2ND VARS

lower:-1E99
upper:0.47
m:0
s:1
Paste

Highlight Paste, Press ENTER, see this:

normalcdf(-1E99,0.47,0,1)

or if you calculator does not have the above wizard, 
and you only see normalcdf(, then make it read this 
way

normalcdf(-1E99,0.47,0,1)

Press ENTER.

Read the answer as 0.6808224814

b) to the right of z = -0.06 
On your TI-83 or 84 press 2ND VARS

lower:-0.06
upper:1E99
m:0
s:1
Paste

Highlight Paste, Press ENTER, see this:

normalcdf(-0.06,1E99,0,1)

or if you calculator does not have the above wizard, 
and you only see normalcdf(, then make it read this 
way

normalcdf(-0.06,1E99,0,1)

Press ENTER.

( c) to the right of z = 2.53 
On your TI-83 or 84 press 2ND VARS

lower:2.53
upper:1E99
m:0
s:1
Paste

Highlight Paste, Press ENTER, see this:

normalcdf(2.53,1E99,0,1)

or if you calculator does not have the above wizard, 
and you only see normalcdf(, then make it read this 
way

normalcdf(2.53,1E99,0,1)

Press ENTER.

(d) to the left of z = -1.31 
On your TI-83 or 84 press 2ND VARS

lower:-1E99
upper:-1.31
m:0
s:1
Paste

Highlight Paste, Press ENTER, see this:

normalcdf(-1E99,-1.31,0,1)

or if you calculator does not have the above wizard, 
and you only see normalcdf(, then make it read this 
way

normalcdf(-1E99,1.31,0,1)

Press ENTER.

(e) between z = 0.72 and z = 1.59 
On your TI-83 or 84 press 2ND VARS

lower:0.72
upper:1.59
m:0
s:1
Paste

Highlight Paste, Press ENTER, see this:

normalcdf(0.72,1.59,0,1)

or if you calculator does not have the above wizard, 
and you only see normalcdf(, then make it read this 
way

normalcdf(0.72,1.59,0,1)

Press ENTER.

(f) between z = -0.11 and z = 2.48 
On your TI-83 or 84 press 2ND VARS

lower:-0.11
upper:2.48
m:0
s:1
Paste

Highlight Paste, Press ENTER, see this:

normalcdf(-0.11,2.48,0,1)

or if you calculator does not have the above wizard, 
and you only see normalcdf(, then make it read this 
way

normalcdf(-0.11,2.48,0,1)

Press ENTER.

Edwin