A data set the shows no clear trend or pattern can be used to
A.
Write a conjecture
B.
Support a conjecture
C.
Reject a conjecture
D.
Find an outlier
2.
Which of these lines or curves of best fit would support a conjecture that as outside temperature increases, the fewer people go to the athletic club
A.
A line of best fit that shows a positive slope
B.
A line of best fit that shows a negative slope
C.
A line of best fit that shows a zero slope
D.
A curve of best fit that shows a slight upward curve
3.
Keren used the data in the table to make a conjecture about whether starting teacher salary and the amount spent per pupil are related. To assure that her conjecture is valid, what should Keren do?
A.
Rewrite her conjecture to include the outlier
B.
Extend the curve of best fit
C.
Use a line of best fit instead of a curve
D.
Gather more data
4.
When is it not valid to use the line of best fit to make prdications about the general population?
A.
When the data set is small
B.
When the data shows a smooth curve
C.
When there is an outlier
D.
When there is a negative slope
5.
To support a conjecture, a plot must show which of the following?1) A positive correlation 2) A negatice correlation 3) A trend or pattern
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Directions: ln each of the question-sets below are two/three statements followed by two conclusions numbered I and II. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the given statements, disregarding commonly known facts. Give answer
Statements: All stars are bottles.
Some bottles are papers.
No paper is a calendar.
Conclusions: I. All stars being papers is a possibility:
II. No calendar is a bottle.