Topic 3 Test Review

Front

A trend line that most closely models the relationship between two variables displayed in a scatter plot is the ______.

Back

line of best fit

Front

Using the explicit formula, what is the 12th term of the sequence starting with -8 and having a common difference of 2.5?

Back

19.5

Front

Back

35

Front

If a scatterplot has no association then...

Back

its ordered pairs have no predictable pattern.

Front

If Gabriela has 234 bracelets left after the first day and 222 after the second day, how many will she have left after the fifth day, assuming an arithmetic sequence?

Back

186

Front

Define 'line of best fit'.

Back

A line that best represents the data on a scatter plot, minimizing the distance between the line and all data points.

Front

What is an arithmetic sequence?

Back

A sequence of numbers in which the difference between consecutive terms is constant.

Front

What is the formula for the nth term of an arithmetic sequence?

Back

Front

Calculate the 5th term of the arithmetic sequence where the first term is 10 and the common difference is 3.

Back

The 5th term is 22.

Front

What does a correlation coefficient of 0 indicate?

Back

No correlation between the two variables.