Bell curve for a z-score

Perhaps
=(1/(Sigma*SQRT(2*PI())))*EXP(-1/2*((B2-Mu1)/Sigma)^2)
where
B2 = 20
B3=B2+Step
<TABLE style="WIDTH: 73pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=96 border=0 x:str><COLGROUP><COL style="WIDTH: 41pt; mso-width-source: userset; mso-width-alt: 1974" width=54><COL style="WIDTH: 32pt; mso-width-source: userset; mso-width-alt: 1536" width=42><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 41pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=54 height=17>Step =</TD><TD class=xl26 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 32pt; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: #ccffcc" width=42 x:num="00.2">0.2</TD></TR></TBODY></TABLE>
<TABLE style="WIDTH: 103pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=137 border=0 x:str><COLGROUP><COL style="WIDTH: 48pt" width=64><COL style="WIDTH: 55pt; mso-width-source: userset; mso-width-alt: 2669" width=73><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 48pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=64 height=17>µ1 =</TD><TD class=xl26 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 55pt; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: #ccffcc" width=73 x:num>24</TD></TR></TBODY></TABLE>
<TABLE style="WIDTH: 107pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=142 border=0 x:str><COLGROUP><COL style="WIDTH: 55pt; mso-width-source: userset; mso-width-alt: 2669" width=73><COL style="WIDTH: 52pt; mso-width-source: userset; mso-width-alt: 2523" width=69><TBODY><TR style="HEIGHT: 12.75pt" height=17><TD class=xl25 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 55pt; BORDER-BOTTOM: #d4d0c8; HEIGHT: 12.75pt; BACKGROUND-COLOR: transparent" width=73 height=17>σ =</TD><TD class=xl26 style="BORDER-RIGHT: #d4d0c8; BORDER-TOP: #d4d0c8; BORDER-LEFT: #d4d0c8; WIDTH: 52pt; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: #ccffcc" width=69 x:num="00.4">0.4</TD></TR></TBODY></TABLE>
Adjust to your needs

PCL,

A bit confused on you answer, can you elaborate?

Thanks

You can create you own bell shape chart.
B2 = 20
B3 = B2 + 0.2
C2 = (1/(0.4*SQRT(2*PI())))*EXP(-1/2*((B2-24)/0.4)^2)
or
C2 = (1/($D$2*SQRT(2*PI())))*EXP(-1/2*((B2-$D$3)/$D$2)^2)
where $D$2 = 0.4 and $D$3 = 24
Copy B3 and drag down to B75
Do the same with column C
Note:
In =(1/(Sigma*SQRT(2*PI())))*EXP(-1/2*((B2-Mu1)/Sigma)^2)
Sigma and Mu1 are cells name