A2_11.5.1 Video Lesson - Intro to Standard Deviation

Before the video lesson, you will first answer some questions to review medians and quartiles (Q1 and Q3).

Get your notes ready and then click "Yep - let's go!" to continue.

Ready to start?

• Yep - let's go!

• No

Tags

CCSS.6.SP.B.5C

#1a (This is your evidence for #1b)

List the data below in order from least to greatest.

5, 4, 6, 5, 3, 6, 8, 3

Find the median of the data and label it on the diagram. 

Draw a line in the data set to mark this and write in the median value.

(Note: You have now split the data set into two halves.)

#1b (should match #1a)

What is the median of the data?

Mathematical Equivalence

ON

Tags

CCSS.6.SP.B.5C

#2a (This is your evidence for #2b)

1. Using your data from #1 :

2. Find the median of each of the halves. 

3. Draw a vertical line to mark each of these in your data set and write in the values. 

4. (Note: You’ve now split the data set into four groups or quarters.) 

#2b

What is the median of the left half (lower half)?

Mathematical Equivalence

OFF

Tags

CCSS.6.SP.B.5C

#2c

What is the median of the right half (upper half)?

Mathematical Equivalence

OFF

Tags

CCSS.6.SP.B.5C

What is the median of a dataset?

• The largest value in the dataset

• The middle value of the dataset

• The average of all values in the dataset

• The smallest value in the dataset

Tags

CCSS.6.SP.B.5C

What is the term used for the median of the lower half of a dataset?

• Q3

• Q1

• Q2

• Mean

Tags

CCSS.6.SP.B.5C

Which quartile represents the median of the upper half of the dataset?

• Q4

• Q3

• Q2

• Q1

Tags

CCSS.6.SP.B.5C

What is the symbol used to represent standard deviation?

• Alpha

  α

• Delta

  Δ

• Beta

  Β

• Sigma

  σ