Question

Which sentence correctly describes a data set that follows a normal distribution with a standard deviation of 4 and a mean of 14?

68% of the data points lie between 10 and 14.

68% of the data points lie between 8 and 12.

68% of the data points lie between 10 and 18.

68% of the data points lie between 10 and 16.

Answer 1

Option B @drawar

Answer 2

@Arnab09 @.Sam.

Answer 3

No, mean =14 and st.dev = 4, what are the values of mean - st.dev and mean + st.dev?

Answer 4

Oh Option A sorry, my fault..

Answer 5

Right @drawar

Answer 6

cause it can't be 10 and 18

Answer 7

@ganeshie8

Answer 8

cause it can't be 10 and 18, why is it?