Alg2 Reg Unit 7 Mid Test Review

What is the mean:

10,18,25,19,11

What is the standard deviation of the sample:

22,19,45,10,13,9

• 15.856

• 13.411

• 12.243

• 19.66

How do you get the five number summary in your calculator?

• Stat, Calc, 1-Var Stats

• Stat, Edit/Enter, enter values, Stat, Calc, 1-Var Stats

• Stat, 2nd graph, enter values, Stat, Calc, 1-Var Stats

What is the median?

• 62
• 58
• 66
• 60

mean = median

• skewed left

• skewed right

• symmetrical

A way to describe the shape of a data display that indicates most of the data is on one side of the display.

• symmetric
• unimodal
• skewed
• uniform

All of the below sets have the same mean.

Set 1-Standard Deviation=3.1

Set 2-Standard Deviation=4.9

Set 3-Standard Deviation=1.7

Set 4-Standard Deviation=3.2

Which set of data probably has the points FARTHEST from the mean?

• 1

• 2

• 3

• 4

What do quartiles split data up into?

• halves

• thirds

• fourths

• fifths

What is the shape of this bar graph?

• Skew right

• Skew left

• Symmetrical

• uniform

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4