Circles
the line across a circle going through its center
diameter
What is another word for the mean of a data set?
average
a graph that uses vertical or horizontal bars to display data
bar graph
a way to get a total by making four vertical marks, than making the fifth diagonally across the four
tally marks
How is pi calculated?
Divide the circle's circumference by it's diameter.
the measure from the center of a circle to the outside edge
radius
The middle number of a set of numbers when arranged in order from greatest to least or least to greatest is the:
Median
The sums of the rows and columns in a two-way frequency table are called:
Marginal Frequency
__________ indicates up and down movement.
__________ indicates movement across.
vertical
horizontal
what is the date for pi day?
03/14
the measure of the outside of a circle
the circumference
The item that is listed most often in a data set is the __________.
mode
Each Entry in the table is called ?
Joint frequency
a running total in which a new amount is added to a given amount repeatedly
cumulative
What is the value for pi?
3.14
What is the formula for finding the area of a circle?
A = πr2
The mean, the median, the mode, and the range of a data set are called the _______________.
What is the Median of the numbers below:
7,4, 3, 8, 6,
6.
the number of times something occurs
frequency
What is the mean of the following numbers?
7,11,12, 15,5
10
the ratio of a circle's circumference to its diameter
pi
Explain how to find the median of a data set when the set has an even number of items.
Add the two middle numbers together and divide by 2.
What is the mode of these numbers:
12,7,12,6,7, 12 14
12
the space between marked values on the scale of a graph
interval
The Diameter of a circle is 14. What is the radius?
7