Uniform Density Curves

Question 1

Which statements are true? Check all that apply.

Revolt · Accepted Answer

To be a density curve, the area between the x-axis and the curve must be 1.; This could be a density curve because all points on the curve are above the x-axis.

Question 2

If the median of the density curve is 1.5, which value could be the mean of the density curve?

Revolt · Accepted Answer

μ = 2.5

Question 3

Which point on the density curve represents the median value?

Revolt · Accepted Answer

b

Question 4

Which statement best describes the values of the median and mean for the density curve?

Revolt · Accepted Answer

The median and mean of the values are about equal.

Question 5

Which shows a uniform density function?

Revolt · Accepted Answer

[Image: On a coordinate plane, a line goes from (2, 0) to ...]

Question 6

What is the height of the density function?

Revolt · Accepted Answer

0.2

Question 7

What percentage of students snooze between 6 and 12 extra minutes before rising?

Revolt · Accepted Answer

40%

Question 8

14✔ 615

Revolt · Accepted Answer

✔ 6; The shaded portion of the density curve represents the students who practice between and hours each week. This group of students is % of all of Mrs. Willman’s students.: 6; The shaded portion of the density curve represents the students who practice between and hours each week. This group of students is % of all of Mrs. Willman’s students.: 8; The shaded portion of the density curve represents the students who practice between and hours each week. This group of students is % of all of Mrs. Willman’s students.: 14

Question 9

Complete the statement about the shaded portion of the density curve.

Revolt · Accepted Answer

Aleesha’s weekly practice time places her at the 75th percentile of Mrs. Willman’s students. This means that Aleesha practices the piano , which is hours per week.: more than 75% of Mrs. Willman’s students; Aleesha’s weekly practice time places her at the 75th percentile of Mrs. Willman’s students. This means that Aleesha practices the piano , which is hours per week.: 10.5

Question 10

46✔ 815

Revolt · Accepted Answer

✔ 8

Uniform Density Curves Answers

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