The graph of a normal curve is given. Use the graph to identify the value of μ and σ.

Question

The graph of a normal curve is given. Use the graph to identify the value of μ and σ.

Answer 1

the mean = 5, = the arithmetic average = median = the mode

for a symmetric normal distribution mean=median=mode

one standard deviation = 7-5 = 2

between z=0 and z=2 is 68% of the area under the curve