Central Tendency Flashcards
1
Q
Measures of central tendency include
A
Mode, median, and arithmetic mean
2
Q
A stem-and-leaf plot
A
has “stems” on the left and “leaves” on the right. It is like a sideways histogram, but it preserves each individual value
3
Q
Why do we use measures of central tendency?
A
To summarize many observations with a single number.
4
Q
Mode
A
Value which occurs most frequently
ex. 1,3,3,3,4,4,5,6,7
m = 3
5
Q
Median
A
The middle value
ex. 1,2,2,3,4,5,6
m = 3
6
Q
In physics, the mean is the _______ point.
A
balancing
7
Q
In a uniform spread shaped like a rectangle, the mean is _______ the median.
A
equal to
