The frequency distribution to the right shows the number of voters (in millions)

Question

The frequency distribution to the right shows the number of voters (in millions) according to age. Consider the event below. Can it be considered unusual?

A voter chosen at random is between 21 and 24 years old

Yes. The probability of the event is close to 1.
No. The probability of the event is not close to 0.
Yes. The probability of the event is close to 0.
No. The probability of the event is not close to 1.

Ages of voters Frequency 18 to 20 11.5 0.080702 21 to 24 11.8 0.082807 25 to 34 21.9 0.153684 35 to 44 27.1 0.190175 45 to 64 16.7 0.117193 65 and over 53.5 0.375439 142.5

Explanation / Answer

From the table, we can see that

P(21 to 24) = 0.082807

Most classes usually treat "unusual" as being P < 0.05. As it is not the case here,

OPTION B: No. The probability of the event is not close to 0. [ANSWER, B]

************************************

If you use a different standard for "unusual" in your class, please use that instead.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.