alleryStart learning →If X ~ U(0, 10), the probability that x lies between 2 and 4 comes from the area that is:
ATen units wide
BTwo units wide
CFour units wide
DSix units wide
Answer & Solution
Correct answer: B. Two units wide
1. Uniform probability is proportional to interval width.
2. The notation X ~ U(a, b) has a as the lowest value and b as the highest.
3. Probability is represented by area under the curve.
4. The strip between 2 and 4 lies right of 2 and left of 4.
5. That strip is two units wide, from 2 up to 4.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 5 'Continuous Random Variables', sections 5.1-5.3_
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