Basic Statistics

74 THE NORMAL DISTRIBUTION

Figure 6.10

80%

• cu

60%

z

.- 9

5

3

3 40%

0

20%

0%

Box plot of systolic blood pressures of adult males.

32 1 0 1 23

X

Figure 6.11

deviation of 1.

Plot of cumulative normal distribution with a mean of 0 and a standard