Geometry
How do you find the area of a triangle?
base times height divided by two
If you are making a net of a cube, what must the net consist of, besides 6 squares?
There must be 4 in a row, with one square on opposite sides.
How can I turn "How long did you go to the park today" into a statistical question?
How long did each 6th grader go to the park this week?
The oldest kid in our high school is 19 years old. The youngest kid in kindergarten is 5 years old. What is the range of all the kids ages in this school?
14
How do you find the area of a trapezoid?
add the bases, multiply by the height, divide by 2
A square pyramid, with a base of 4 inches by 4 inches, is also made up of 4 triangles with a height of 3 inches each. What is the surface area of this square pyramid?
4x4 = 16; 4x3/2=6; 6x4=24; 24+16= 40 inches squared
Mean Median and Mode are all
measures of center
Johnny makes $5, $4, $6, and $2 each day. If he wants to have a mean of $5, how much money must he make the next day?
$8
Sam knows the area of a prism's base. She also knows the height of the prism. How could she find the volume of the prism?
Multiply the area of the base by the height
The area of Mr. Broadwell's floor is 300 square feet. If the length of the floor is 20 feet, what is the width of the floor?
15 feet
How do you plot x's and dots on a line or dot plot? For example, in the data set 4, 5, 6, 3, 4, 2, 4, how would you plot those points?
You put an x or a dot over each number however many times that data point occurs
How do you find mean?
Add em up, divide by however many numbers you got
A sand box has side lengths of 3 ft, 4 ft and 5 ft. How many cubic feet of sand can it hold?
60 cubic feet
If you are trying to find out the amount of water something can hold, what are you finding?
Its volume
How is a histogram different than a dot plot and a bar graph?
It has intervals instead of exact numbers
The bars touch
When is it better to use median instead of the mean?
If there is an outlier
9 units
How do you find surface area from a net?
Find the area of all the faces and add em up
On a Box Plot, what do the lines on each end represent?
The minimum and maximum value
What does a measure of variability do?
It tells how the data varies, using a single number