Statistics
This answer will most likely show a positive correlation when graphed on a scatterplot:
A. The amount of rainfall on Fridays
B. The height of a candle and the amount of time the candle stays lit
C. The price of a pizza and the number of toppings added
D. The temperature of a cup of hot chocolate and the length of time the cup sits
What is answer B?
These are the slope and y-intercept for the function y = -2x.
What is m = -2 and b = 0?
This is the solution for the following system:
-2x+4y=18
-5x - 4y=-11
What is (-1,4)?
The sum of two numbers is 12 and their difference is 4. These are the numbers.
What are 4 and 8?
This word means a prediction based on the given data.
What is a conjecture?
x | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 8 | 9 |
Y | 2 | 1 | 4 | 4 | 5 | 6 | 2 | 5 | 8 |
This is the correlation for the data points above.
What is positive correlation?
This is the slope of the line that passes through A (-6, 2) and B (6, -4).
What is -1/2
This is the solution for the following system:
8x - 4y = -12
8x + 7y = -23
What is (-2, -1)?
A jar contains q quarters and d dimes. There are 7 coins in the jar, and the total value of the coins is $1.00. This is the system you will use to solve the problem.
What is:
q + d = 7
0.25q + 0.10d = 1.00
If two equations have the same slope but different y-intercepts, this is the number of solutions the system has.
What is none, because the lines are parallel?
This is the equation of the line of best fit for the following data:
X | 0 | 1 | 2 | 3 | 4 | 5 | 4 | 6 | 5 | 6 | 8 |
y | 8 | 9 | 10 | 11 | 12 | 13 | 11 | 12 | 11 | 10 | 12 |
A. y = - 3/4x + 8
B. y = 3/4 x + 8
C. y = 3/4 x – 8
D. y = x + 8
What is answer B?
Mary and Angel each recorded their monthly cell phone bill, where x represents the minutes used and y represents the cost of their plan.
Mary represented her bill using the function y=0.10x + 70.
Angel recorded his bill using the function y=0.25x + 30.
This person's bill is more expensive if each person talks for 200 minutes.
What is Mary's bill?
This is the solution for the following system:
-3x + 4y = -20
x + 12y = 20
What is (8, 1)?
Mary and Angel each recorded their monthly cell phone bill, where x represents the minutes used and y represents the cost of their plan. Mary represented her bill using the function y=0.10x + 70. Angel recorded his bill using the function y=0.25x + 25. This is the number of minutes that makes both bills equal.
What is 300 minutes?
These are the three methods for solving a system of equations.
What are graphing, elimination, and substitution?
Play in League | Do Not Play in League | Total | |
Boy | 31 | 19 | 50 |
Girls | 21 | 29 | 50 |
Total | 52 | 48 | 100 |
This is the relative frequency of girls who play in a league to all the girls.
What is 42%?
Time (in weeks) | Money Saved (in dollars) |
0 | 6 |
2 | 20 |
4 | 34 |
6 | 48 |
and Function B: y = 6x -5
This is the function with the greater rate of change.
What is function A?
This is the solution for the following system:
-10x - 9y = -6
-2x + 3y = 18
What is (-3, 4)?
Alonzo and Miguel scored a total of 40 points in the basketball game. Miguel scored four more points than twice Alonzo’s score. This is number of points Miguel scored.
What is 28 points?
This is the slope-intercept form for the linear function: 4x - 2y = 6
What is y = 2x - 3
Play in League | Do Not Play in League | Total | |
Boy | 31 | 19 | 50 |
Girls | 21 | 29 | 50 |
Total | 52 | 48 | 100 |
From all the students not on a league, this is the percentage of boys who are not in a league.
What is 39.6%?
You used these to prove that the slope anywhere on a straight line is the same.
What is similar triangles?
This is the solution for the following system:
3x - 3y = 9
-5x - 10y = -15
What is (3,0)?
A jar contains q quarters and d dimes. There are 7 coins in the jar, and the total value of the coins is $1.00. This is the number of dimes in the jar.
What is 5 dimes?
This is the number of solutions the system below has:
2x + 5y = 10
2x + 5y = 16
What is no solution?