CRJ 303_Homework 7_Answers.docx - 1 Find the correlation...

1. Find the correlation between the two following variables: infant mortality rate
and burglary rate.
IMR
(x)
Burglary
(y)
4.1 399.8
7.8 524.1
6.2 733.5
5.1 622.1
a. 0.335
b. 0.455
c. 0.256
d. 0.330
Answer is A: 0.335
2. Find the correlation between the two following variables: percent of
neighborhood that is rural and the percent of the neighborhood in poverty.
Rurality
(x)
Poverty
(y)
57.4 10.3
5.4 18
34.3 12.8
39.4 13.1
Answer is B: -0.988
3. What is the strength of the following correlation? -0.52
Answer is B: Moderate because the range between -0.3 to-0.59 and 0.3 to 0.59
there is a moderate correlation.
4. What is the strength of the following correlation? 0.24

Answer is A: Weak because the range between 0 to 0.29 there is a weak correlation.
5. What type of relationship, positive or negative, is portrayed in the following
sentence? The statistical relationship shows that when poverty worsens,
crime worsens.
a. Positive
b. Negative
Answer is A: There is a positive relationship.