Question

question 7 of 10 (1 point) 1 question attempt 1 of unlimited
(a) choose the data set that has an outlier:
(b) choose the two data sets that show clustering.

Explanation:

(a)

Step1: Recall the definition of an outlier

An outlier is a data point that is far from other data points.

Step2: Analyze each figure

• Figure 1: There are points that are far from the main group of points.
• Figure 2: Points are relatively close together without a distinct outlier.
• Figure 3: Points are clustered with no obvious outlier.
• Figure 4: Points follow a trend without an outlier.

(b)

Step1: Recall the definition of clustering

Clustering is when data points group closely together.

Step2: Analyze each figure

• Figure 1: Has two clusters of points.
• Figure 2: Points are in a loose cluster.
• Figure 3: Points are in a cluster.
• Figure 4: Points follow a trend (not clustering).

Answer:

(a) Data set in Figure 1
(b) Data set in Figure 1, Data set in Figure 3