Question

The scatter plot below shows 9 data points.

The graph shows (1, 5), (2, 4), (3, 6.5), (4, 6), (5, 5.8), (6, 5.4), (7, 5), (8, 7), and (9, 6.5).

Drawing a line through which two points creates a reasonable line of best fit for the data?

A.
(1, 5) and (8, 7)

B.
(1, 1) and (8, 9)

C.
(1, 4) and (9, 7)

D.
(2, 4) and (7, 5)

Answer 1

C

The line through (1, 4) and (9, 7) has a moderate upward slope and passes through the central cluster of points, balancing points above and below — it best represents the trend.