Step: 1

From the graph, as the supply of an item increases, the price of the item decreases and as the supply decreases, the price of the item increases.

Step: 2

If one set of data values tends to decrease with an increase in the other set of data, the plot is said to follow a negative trend.

Step: 3

So, the scatter plot shows a negative trend.

[Price decreases as supply increases.]

Correct Answer is : Negative trend

Step: 1

Since the oval formed is narrow and it tilts like a line as shown with positive slope, the given correlation is a strong positive linear correlation.

[Draw a oval around the points of the given scatter plot.]

Correct Answer is : Strong positive linear correlation

Step: 1

Since the oval formed is bulgier and it tilts like a line with positive slope, the given linear correlation is a weak positive linear correlation.

[Draw a oval around the points of the given scatter plot.]

Correct Answer is : Weak positive linear correlation

Step: 1

Since the oval formed is narrow and it tilts like a line with negative slope, it represents a strong negative linear correlation.

[Draw a oval around the points of the given scatter plot.]

Correct Answer is : Strong negative linear correlation

Step: 1

Since, the oval formed is bulgier and it tilts like a line with negative slope, the given correlation represents a weak negative linear correlation.

[Draw a oval around the points of the given scatter plot.]

Correct Answer is : Weak negative linear correlation

Step: 1

There exists a positive relationship between the weight and seeds in papaya if the weight increases with the number of seeds.

Step: 2

Only Graph 2 shows this relation. So, Graph 2 is the correct answer.

Correct Answer is : Graph 2

Step: 1

A straight line that best represents the data on a scatter plot is referred to as the line of best fit.

Step: 2

Among the graphs shown, Graph 1 best represents the data on the scatter plot.

Correct Answer is : Graph 1

Step: 1

Draw a trend line that closely fits the data points on the scatter plot as shown.

Step: 2

To find the amount of runoff if there is a rainfall of 2000 mm, draw a line to meet the trend line as shown.

Step: 3

So, the amount of runoff if there is a rainfall of 2000 mm is about 1200 mm.

Correct Answer is : about 1200 mm

Step: 1

From the graphs, it can be easily observed that the line in Graph 4 shows the trend of the data set with positive slope.

Step: 2

So, the line in Graph 4 shows the positive correlation of the data shown.

Correct Answer is : Graph 4

Step: 1

Count the number of data points that lies on the line in all these graphs.

Step: 2

Among the graphs, maximum number of data points are lying on the line in Graph 3.

Step: 3

So, Graph 3 best represents the line that best fits the data points.

Correct Answer is : Graph 3

- Finding Intercepts of Linear Relations-Gr 8-Solved Examples
- Slope of a Line from its Graph-Gr 8-Solved Examples
- Constructing Scatter Plots-Gr 8-Solved Examples
- Interpreting Scatter Plots-Gr 8-Solved Examples

- Data