Question

struct a scatter diagram using the data table to the right. this data is a study comparing the amount of tar and carbon monoxide (co) in rettes. use tar for the horizontal scale and use carbon monoxide (co) for vertical scale. determine whether there appears to be a relationship ween cigarette tar and co.
tar co tar co t
16 15 12 11
9 8 8 11 1
1 1 13 12
11 13 18 18 1
5 7 17 18 1
is there a relationship between cigarette tar and co?
a. no, there appears to be no relationship.
b. yes, as the amount of tar increases the amount of carbon monoxide decreases.
c. yes, as the amount of tar increases the amount of carbon monoxide also increases.

Explanation:

Step1: Analyze Data Relationship

From the data (e.g., Tar=16, CO=15; Tar=9, CO=8; Tar=1, CO=1; Tar=11, CO=13; Tar=5, CO=7; Tar=12, CO=11; Tar=8, CO=11; Tar=13, CO=12; Tar=18, CO=18; Tar=17, CO=18), as Tar increases (from 1 to 18), CO generally increases.

Step2: Evaluate Options

• Option A: Incorrect, as there is a positive trend.
• Option B: Incorrect, trend is positive (CO increases with Tar), not negative.
• Option C: Correct, matches the positive relationship seen in data.

Answer:

C. Yes, as the amount of tar increases the amount of carbon monoxide also increases.