Question

1. question 2: which of the following is not a way to check if a given set of data is linear?

a) plotting the data on a scatter plot
b) calculating the slope of the data
c) determining if the data follows a specific pattern
d) calculating the mean of the data points

Explanation:

• Plotting data on a scatter - plot can show if points lie on a straight line (linear).
• Calculating the slope (if constant, data is linear).
• A specific linear pattern (like \(y = mx + b\)) indicates linearity.
• The mean of data points (\(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\)) gives central tendency, not linearity.

Answer:

d) Calculating the mean of the data points