Statistics (review)

Describe the shape of distribution.

• Symmetrical - U shaped/bimodel

• Symmetrical - bell shaped

• Skewed right

• Skewed left

What does the distribution of a set of data show?

• Arrangement of data values

• How to make a bar graph

• Numbers that have no data values

• Average of a data set

How do you know if a set of data has symmetry?

• The data set has numbers that repeat

• The data set show areas with no data

• The left side the data set looks like the right side

• The right side of the data set has a tail at one end

What do they call data that is grouped close together?

• Peak

• Gap

• Symmetry

• Cluster

Which statement best describes this graph?

• There is a peak at 47.

• There is a cluster around 38-40.

• The mode is 38.

• There is a gap in the data between 39-40.

Is this data positively or negatively skewed?

• Positively skewed

• Negatively skewed

Is this data positively or negatively skewed?

• Positively skewed

• Negatively skewed

The mode is

• The middle score
•  Scores added & divided by the number of scores
• The most frequent score
• The middle when in order

The mean is...

• the middle

• the average number (added together, then divided by the number of dots)

• The most frequent number

• The middle when in order

What are the minimum and maximum scores in section 1?

• minimum = 40 , maximum = 95

• minimum = 95 , maximum = 40

• minimum = 91 , maximum = 90

• minimum = 90 , maximum = 41