Probability
A coin is flipped once. What is the probability of getting heads?
1/2
Which graph shows data using dots above numbers on a number line?
Dot plot
Find the mean of 2, 4, 6.
4
What do we call the distance from the center to the edge of a circle?
Radius
Angles that add up to 90° are called what?
Complementary
A die is rolled. What is the probability of rolling a number greater than 4?
2/6 = 1/3
What graph uses bars to show groups of numbers?
Histogram
Find the median of 3, 5, 7, 9, 11.
7
What do we call the distance across the whole circle through the center?
Diameter
Angles that add up to 180° are called what?
Supplementary
A coin is flipped and a die is rolled. What is the probability of getting heads and a 3?
1/2 x 1/6 = 1/12
What graph shows the median and quartiles?
Box plot
Find the range of 4, 8, 10, 15.
11
If the radius is 3, what is the diameter?
6
Two angles that share a side and a vertex are called what?
Adjacent angles
Two coins are flipped. What is the probability of getting two heads?
1/4
In a box plot, what does the middle line in the box show?
Which is more affected by an outlier: mean or median?
Mean, because the mean is calculated by summing all values and dividing by the total count, one extremely large or small value can disproportionately skew the average.
What formula is used for circumference?
C=2πr OR C=πd
If one angle is 40°, what is its complement?
50°
A bag has 3 red marbles and 2 blue marbles. What is the probability of drawing red then blue without replacement?
3/5 x 2/4 = 6/20 = 3/10
Which graph is best for showing test scores from 0–100?
Histogram
Which number is the outlier: 4, 5, 5, 6, 20?
20
What formula is used for area?
A=πr²
If one angle is 120°, what is its supplement?
60°