Question

what does a scatter plot with no correlation look like?

a. points scattered randomly

b. points trending upward

c. points trending downward

d. points forming a u - shape

what is an outlier?

a. the average of all data points

b. the midpoint of the data set

c. the most frequent value in the data set

d. a data point significantly different from others

Explanation:

• For the first question: In a scatter plot, no correlation means there is no pattern. Randomly scattered points (\(a\)) show no relationship. Trending upward (\(b\)) is positive correlation, trending downward (\(c\)) is negative correlation, and a U - shape (\(d\)) implies some non - linear relationship.
• For the second question: An outlier is defined as a data point that is significantly different from the other data points in a dataset. The average (\(a\)) is the mean, the midpoint (\(b\)) is the median, and the most frequent value (\(c\)) is the mode.

Answer:

• First question: A. Points scattered randomly
• Second question: D. A data point significantly different from others