Correlations + or -
Trend Lines
Two - Way Tables
Relative Frequency
EXAM Review
100
What is negative correlation?
100
A__________ should be through the middle of the data points
Trend line
100
How many total on Honor Roll?
68
100
What percent of students with a math average of 90 or more speak a foreign language? Round to the nearest percent
82%
100
Is (3, 12) a solution to y = x + 9?
yes
200
Name the correlation
What is no correlation?
200
What is another name for a trend line?
A line of best fit
200
How many total have No Curfew?
38
200
What percent of students do not speak a foreign language and have a math average greater than or equal to 90? Nearest percent
10%
200
Find the solution to the system of equations:
y = 1/4x
y = 1/4x + 2
no solution
300
In general, the more one eats the less hunger they feel. This would be _____correlation.
What is negative corrleation?
300
Write the equation for the line of fit shown.
y = 1/2 x + 2
300
What total for No Honor Roll?
63
300
What percent speak a foreign language and have a math average not greater than or equal to 90?
7%
300
Find the slope
4
400
This describes the correlation between time running on a treadmill and calories burned.
What is positive correlation?
400
Which line is the best model of the data?
What is Line "P"?
400
How many total students were surveyed?
131
400
What percent do not play basketball nor football?
16%
400
Write an equation for the line.
y = -2/3x + 5
500
As temperature decreases, the speed at which molecules move decreases. Identify the type of correlation.
Positive
500
Predict the belly width for a length of 135 cm
any number over 30 and less than 35 cm
500
What is the grand total for the 2 way table?
120
500
90 new drivers were surveyed after they took their driving test. 30 of those drivers passed. What percent that had 20 or over lessons failed? Round your answer to the nearest tenth.
16.7%
500
Solve.
-3(5y - 2) = 21
y = -1