Vocab
What is a Relative Frequency table
Shows the ratio (percentage) of the number of data in each category to the total number of data items.
Question 5 on the Study Guide
yes men- 54.5%
yes women- 55.5%
total yes - 55%
no men - 45.5%
no women - 44.4%
total no- 45%
Question 1 from the study guide
negative
no association
Question 6 from the study guide
a. 1 million in total profit every 2 years. 0.5 = 1/2.
b. 4 millions of total profit at the start of 2000.
What is categorical data?
Data that falls into categories
Question 11 on the study guide
B & C
Question 3 from the study guide
A. POSITIVE association
Question 7 from the study guide
slope= 5/6
y-intercept= 55
equation= y= 5/6x + 55
What is positive association?
The y-values tend to increase as the x-values increase.
Question 3 on worksheet "Constructing Two-Way Relative Frequency Tables" (the one with no butterfly)
Show me everyone's worksheet
Question 4 from the study guide
D. Weak Negative
Question 3 from the worksheet "Scatter plot, Correlation, and Line of Best Fit Exam."
A.
What is a scatter plot?
Graph in the coordinate plane that shows the relationship between two sets of data
Question 6 from the worksheet "Constructing Two-Way Frequency Tables" (The one with the butterfly)
Everyone in the group show me your worksheet.
Question 10 from the study guide.
B.
Question 4 from the worksheet "Scatter plot, Correlation, and Line of Best Fit Exam"
D.
what is trend line?
A straight line drawn on a scatter plot that shows the general direction or pattern of the data points
Question 1 from the worksheet: "Interpreting Two-Way Frequency Tables" (the tent one)
a. sports drinks
b. she prefers hiking, 22>11
c. that is false because out of the total of 49 people who like to kayak on 11 like water.
Question 9 from the study guide
A. the data has a linear association
D. The data has a negative association
F. The data has no outliers
Question 20 on the worksheet "Scatter plot, Correlation, and Line of Best Fit Exam"
hint: pick two points from the table (Look at your x-values, the smallest X is always your X1)
y=12.5x +55