The correlation coefficient may assume any value between: -1, and 1. 0 and 1. 0

Question

The correlation coefficient may assume any value between: -1, and 1. 0 and 1. 0 and 8. -1, and 0. -infinity and infinity. The coefficient of determination measures the explained by the simple linear regression model. Correlation Standard error Mean square error Proportion of variation In a simple linear regression analysis, the correlation coefficient and the slope have the same sign. Always Never Sometimes The test scores of 30 students are listed below. Which test scores are above the 75th percentile? 83, 85, 85, 87, 90, 92, 95, 99 85, 85, 87, 90, 92, 95, 99 90, 92, 95, 99 87, 90, 92, 95, 99 Use the box-and-whisker plot below to determine which statement is accurate. About 25% of the adults have cholesterol levels of at most 211. One half of the cholesterol levels are between 180 and 211. One half of the cholesterol levels are between 180 and 197.5. About 75% of the adults have cholesterol levels less than 180.

Explanation / Answer

1.

The correlation gives the relative movement of 1 variable with another

It can only range from -1 to 1

A is right

2 C. Proportion of variation

3. B. Always

4. B

5. The right interpretation from box plot is B.

think of 180 as Q1 ( first 25% demarction)
think of 211 as Q3
think of 197.5 as median or Q2
MIn and max are 154 and 265 respectively.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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