Create Normal Distribution Curve for Data

Question

Following this tutorial

I would like to plot normal distribution curve for following data

Location (Location)        Avg_Rating
Starbucks                  2.119402985
Shish Boom Bah Car Wash    1.666666667
Pirates of Grill           4.363636364
Mortons                    4.625
Lorianna's Boutique        3.982142857
Harry's Collection         3.835820896
Eat at Joes                3.592592593
Brats and Cuties           4.384615385
Belfrance Chocolate        4.735294118
Barista                    3.553571429

Mean = 3.796 St Dev = 1.277

So far, I have accompanying z-value and histogram. But how to make normal distribution curve? What to plot z-value against?

Location (Location)             Avg_Rating      Z-score
Starbucks                        2.119402985    -1.312918571
Shish Boom Bah Car Wash          1.666666667    -1.667449752
Pirates of Grill                 4.363636364    0.444507724
Mortons                          4.625000000    0.64917776
Lorianna's Boutique              3.982142857    0.145765745
Harry's Collection               3.835820896    0.031183161
Eat at Joes                      3.592592593    -0.159285362
Brats and Cuties                 4.384615385    0.460936088
Belfrance Chocolate              4.735294118    0.735547469
Barista                          3.553571429    -0.189842264

And this is how z-values look if I plot against location

Answer 1

You plot number of locations vs ratings to see the normal distribution.

Let the X-axis have ratings chosen at certain resolution, say, 0.5. The Y-axis has number of locations that have the rating fall in the window you have chosen.

eg: between 3.5 and 4 you have 3 locations.

Since the data is too small dont expect to see a perfect bell curve.