Random variable $$\(X\)$$ is normally distributed, with a mean of 25 and a standard deviation of 4 . Which of the following is the ap- proximate interquartile range for this distribution?
A.
\(25.00-22.30=2.70\)
B.
\(27.70-22.30=5.40\)
C.
\(27.70 \div 22.30=1.24\)
D.
\(2.00(4.00)=8.00\)
E.
\(37.00-13.00=24.00\)
Exam No：AP Statistics Problem Set 11 Year：2024 Question No：APStatistics2024AP0436
Answer:
B
Knowledge points:
1.10 The Normal Distribution
1.7 Summary Statistics for a Quantitative Variable
5.2 The Normal Distribution, Revisited
Solution:
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