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Normal Quantile Calculator
Probability (0 to 1):
Mean (μ):
Standard Deviation (σ):
Calculate Quantile
A sociologist wants to construct a \(90\pourcent\) confidence interval for the average income in a city.
Using your calculator, determine the critical value \(z\) required for this interval, rounded to
two decimal places
.
\(z \approx\)
\(\pi\)
\(e\)
\(x\)
\(n\)
\(u_n\)
\(f\)
\(i\)
\(\frac{a}{b}\)
\(\sqrt{\,}\)
\({a}^{b}\)
\(\ln{\,}\)
\(\log{\,}\)
!
\(C\)
7
8
9
←
→
\(\sin{\,}\)
4
5
6
(
)
\(\cos{\,}\)
1
2
3
\(\times\)
\(\div\)
\(\tan{\,}\)
C
0
.
+
-
=
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