Here is my problem:

Recently you ran a large study over 200,000 data points and came up with a mean,median, and standard deviation.

mean= 345

median= 340

standard deviation =45

would you consider the data to br normally distributed?

3(345-340) /45

3(5) /45=

15/45=

.333

because the data falls between -3 and positive 0.3 the data is normal.

Please let me know if i need to make any corrections.Thank you, Lynne