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8th Grade Probability and Statistics Flashcards | StudBud
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8th Grade Probability and Statistics
8th Grade Probability and Statistics
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Answers
1
Which situation is
most likely
to have a scatter plot with a negative correlation?
Amount of air in a balloon and size of balloon
Outside temperature and cooling costs
Age of a baby and wight of that baby
Number of questions missed on a test and test grade
2
Based on the plot, select the best answer that describes the direction of the points.
A negative, linear association
A positive, nonlinear association
A negative, non linear association
A positive, linear association
3
Data with two variables, or pairs of numerical observations.
Bivariate Data
Cluster
4
A data point on a scatter plot that appears far away from the others; does not follow the pattern of the others.
Outlier
Frequency
5
Select the answer choice with a data set that includes an outlier.
{2,4,2,5,6,8,3,4,5,5,7,5}
{2,4,2,5,6,45,3,4,5,5,7,5}
{3,4,7,5,6,4,5,3,4,5,5,7,5}
{8,4,2,5,6,9,3,4,5,5,7,5}
6
Describes a relationship between two data sets. Can help you analyze trends and make predictions.
Correlation
Model
7
A table used to display categorical data separated by two traits is called a frequency table.
False
True
8
The data points create a negative correlation.
True
False
9
Using a linear model for the data, what was the approximate average hourly cost for services?
$40
$65
$100
$75
10
A teacher conducted a survey of the 8th grade class. Given this information, how many students don't drink soda?
24
20
32
46
