Statistical, Non-Statistical, Categorical, Numerical, Distribution Shape
"When did Minions: The Rise of Gru release in the U.S.?" is an example of a ______________ question.
(statistical or non-statistical)
What is non-statistical?
This graph is the only type among the three that shows us every value of data.
What is a dot plot?
The table shows the amount of money, D, in a savings account after m months:
m: 5 6 7 8
D: 1200, 1300, 1400, 1500
After 10 months, there will be _______ in the savings account.
+100 bonus if you can write a linear equation that represents this situation in y = mx + b form
What is 1700?
y = 100x + 700
"x is at least 24."
Give a value that x cannot be.
Any values under 24 will be accepted.
"Where is the best place spend Spring Break?" is an example of a _____________ question.
(statistical or non-statistical)
What is statistical?
This type of statistical graph is split into quarters (quartiles).
+100 bonus points if you can give the five labels on this graph
What is a box plot?
Minimum, Lower Quartile (Q1), Median, Upper Quartile (Q3), Maximum
Michelle plays in a hockey league. For each match, her team will gain 3 points per win, and 1 point per tie. Michelle's team earned 51 points total this season.
Let w be the number of wins, and t be the number of ties. Write an equation that represents the relationship between this and the number of points her team earned.
What is 3w + 1t = 51?
Ranya plays basketball every afternoon. She practices until she makes a minimum of 25 baskets.
Let x be the number of baskets she makes. Write an inequality statement that represents this situation.
What is x ≥ 25?
a) Come up with a question that would collect categorical data.
b) Come up with a question that would collect numerical data.
Questions will be judged by the host.
The mode of the data set below is _______:
22, 25, 26, 26, 27, 28, 28, 28, 28, 29, 30, 30
What is 28?
Given the equation: 5x - 2y = 10
Determine all the ordered pairs (x, y) that are not solutions.
A) (2, 1)
B) (4, 5)
C) (0, -5)
What is A?
Solve for x:
(-2/5)x - 8 < 4
What is x > -30?
The mean and median are equal to each other when our data has this type of distribution.
What is symmetric?
The test scores for Class A were:
74, 80, 85, 88, 90, 93, 97, 100
The test scores for Class B were:
55, 61, 78, 85, 90, 92, 100, 100
Class ___ had the highest mean (average) test score.
What is Class A?
Mean of Class A: 88.375
Mean of Class B: 82.625
Determine whether the following equations are parallel, intersecting, or the same line:
y = 9x + 6
y = -9x - 6
What is intersecting?
a) Solve for x:
-11 < -3x + 7 < 1
b) Give one value that x could be.
a) What is 2 < x < 6?
b) x can be any value between 2 and 6 (but not equal to 2 or 6).
When most of our data is concentrated around the left side of a dot plot, and a few trail off to the right side of the dot plot, then the distribution is skewed ________.
What is right?
The median of the data set below is _________:
231, 233, 245, 253, 260, 269, 270, 274, 282, 283
What is 264.5?
Solve the following system of linear equations using elimination:
2x + 2y = 0
3x - 2y = -5
What is (-1, 1)?
x = -1
y = 1
Graph both of the following linear inequalities:
A) y > -2x - 3
B) y < (1/2) x + 1
+100 Bonus: draw a point to represent a possible solution to these inequalities
Graphs will be judged by the host.