User manual - Distribution (DIST)

45
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uu
uNormal Distribution Probability
Normal distribution probability calculates the probability of normal distribution data falling
between two specific values.
πσ
2
p =
1
e
–
dx
2
2
σ
(x – µ)
2
µ
a
b
∫
a : lower boundary
b : upper boundary
Perform the following key operation from the statistical data list.
5 (DIST)
b (Norm)
c (C.D)
Data is specified using parameter specification. The following shows the meaning of each
item.
Lower .......................... lower boundary
Upper .......................... upper boundary
σ .................................. population standard deviation ( σ > 0)
µ .................................. population mean
Save Res .................... list for storage of calculation results (None or List 1 to 20)
Execute ....................... executes a calculation
After setting all the parameters, align the cursor with [Execute] and then press the function
key shown below to perform the calculation.
• 1(CALC) ... Performs the calculation.
# There is no graphing for normal distribution
probability.