Unit 7: Investigating Data - Wrap Up & Rewind

Quiz
•
Mathematics
•
9th Grade
•
Hard
+5
Standards-aligned
Shanti Howard
Used 8+ times
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Imagine two different classes, Class A and Class B, that recently took the same mathematics test. The scores for each class were recorded and are shown below. Your task is to compare the two distributions using measures of center and standard deviation. Class A Scores: 62, 90, 42, 92, 88, 84, 91, 87, 97, 100 Class B Scores: 75, 80, 78, 85, 90, 82, 88, 84, 81, 87 A) What is the mean score for Class A?
81.3
83.3
85.5
87.6
Tags
CCSS.6.SP.B.5C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Imagine two different classes, Class A and Class B, that recently took the same mathematics test. The scores for each class were recorded and are shown below. Your task is to compare the two distributions using measures of center and standard deviation. Class A Scores: 62, 90, 42, 92, 88, 84, 91, 87, 97, 100 Class B Scores: 75, 80, 78, 85, 90, 82, 88, 84, 81, 87 B) Calculate the standard deviation for both classes.
Class A: 17.8, Class B: 4.7
Class A: 15.3, Class B: 5.2
Class A: 17.8, Class B: 6.1
Class A: 20.1, Class B: 5.5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kris says: "If I use hours of sleep as my independent variable and sleep quality as my dependent variable, I believe there will be a positive correlation." Jeremy says: "If I use the number of absences as my independent variable and test scores as my dependent variable, I believe there will be a positive correlation as well!" A) Which student is incorrect? Why?
A) Kris is incorrect because more hours of sleep generally lead to better sleep quality, indicating a positive correlation.
B) Jeremy is incorrect because more absences generally lead to lower test scores, indicating a negative correlation.
C) Both are correct as both scenarios can have positive correlations.
D) Both are incorrect as neither scenario can have positive correlations.
Tags
CCSS.HSS.ID.C.9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Your teacher asked you to create a situation where there is a positive correlation and a situation where there is a negative correlation. Explain.
A positive correlation is when two variables increase together, and a negative correlation is when one variable increases while the other decreases.
A positive correlation is when one variable increases and the other decreases, and a negative correlation is when two variables increase together.
A positive correlation is when two variables decrease together, and a negative correlation is when one variable decreases while the other increases.
A positive correlation is when one variable decreases and the other increases, and a negative correlation is when two variables decrease together.
Tags
CCSS.HSS.ID.C.9
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Determine the strength of the correlation based on the graph provided.
Strong negative correlation
Weak negative correlation
Strong positive correlation
Weak positive correlation
No correlation
Tags
CCSS.HSS.ID.B.5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A class of students recorded the number of hours they studied in a week. The data collected and boxplot of the data are as follows: 4, 6, 7, 8, 8, 9, 10, 10, 11, 12, 14, 18, 22, 25. Determine if there are any outliers. Explain how you know.
There are no outliers in the data.
The outlier is 25.
The outliers are 22 and 25.
The outliers are 4 and 22.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the median value and interquartile range (IQR) of the data.
The median value is 10.
The IQR is 6.
The median value is 15.
The IQR is 10.
The median value is 20. The IQR is 4.
The median value is 25.
The IQR is 6.
Tags
CCSS.6.SP.B.5C
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