Data Transformation

Which equation best represents this transformation of the parent function?

• h(x) = f(x) - 2

• h(x) = - f(x) - 2

• h(x) = f(x) + 2

• h(x) = - f(x) + 2

The graph on the grid is transformed to g(x) = f(x) + 5.

Which equation represents g(x)?

• g(x) = 7x - 1

• g(x) = 2x + 4

• g(x) = 2x + 1/2

• g(x) = 7x + 5

Adding or subtracting a value to all the observations in a data set will increase each of the following by that amount, except for this one...

• mean

• median

• quartiles

• IQR

Multiplying or dividing all the observations in a data set by the same amount will affect which of the measures below?

• mean

• standard deviation

• mode

• range

• all of the above

We have the following data set:

5, 14, 9, 9, 6, 3, 0, 9, 3

With a mode = 9. If we multiply each number in our set by 2, what will the new mode be?

• 9

• 3

• 6

• 18

If you add a constant to a data set, you have to add that constant to the mean, median, mode, quartiles, and all the numbers in the data set.

• True

• False

Suppose we asked 9 people how many Bernie memes they saw yesterday and the response was (# of memes):

10, 12, 12, 13, 14, 15, 18, 19, 22

The IQR of this data is 6.5. If each of these numbers are doubled, what will the new IQR be?

• IQR=6.5

• IQR=8.5

• IQR=13

• IQR=15

Suppose your data set is 1, 1, 2, 3, 5, 8, 9 The median for this data set is 3. Find the new median if each term is multiplied by 3.

• 3

• 9

• 7

• 6

When multiplying a data set by a constant, you only multiply the range, IQR, and standard deviation by that constant.

• True

• False

Which of the following are true?

• 1 and 2

• 2 and 3

• 1 and 3

• All of the Above