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Evaluating Data Videos 6 videos
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Data doesn't do us much good if we can't interpret it. Ever snuck into a CPA's office while he slips out for a coffee break and tried to decipher o...
SAT Math 1.1 Statistics and Probability. In which of the following data sets are the arithmetic mean and the median equal?
CAHSEE Math 6.4 Statistics, Data, and Probability II 188 Views
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Description:
Statistics, Data, and Probability II Drill 6 Problem 4. What conclusion can be drawn from the graph?
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Understand and evaluate random processes underlying statistical experiments
- Statistics and Probability / Make inferences and justify conclusions from sample surveys, experiments, and observational studies
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Summarize, represent, and interpret data on two variables
- Statistics and Probability / Understand and evaluate random processes underlying statistical experiments
- Statistics and Probability / Make inferences and justify conclusions
- Mathematical Reasoning / Formulating conjectures
Transcript
- 00:04
Here’s your shmoop du jour…
- 00:06
Mark kept track of the time he spent online each month for the past year.
- 00:10
The truth can be scary. This guy likes his Minecraft.
- 00:14
The graph below shows the time Mark spent online in hours and the cost of the internet access.
- 00:19
What conclusion can be drawn from the graph?
Full Transcript
- 00:23
And here are the potential answers...
- 00:26
OK, so this question is a scatter plot that… isn’t very scattered.
- 00:29
It basically looks like the heart monitor of a guy whose heart isn’t… doing so hot.
- 00:34
Let’s just read through the potential answers and, hopefully, one should jump out at us.
- 00:38
A “He spends approximately the same amount of time online each month.”
- 00:43
Well – no – he’s all over the map from here to here… like 2 hours to about 65.
- 00:48
So A is false.
- 00:49
B “He is charged according to the time spent online.”
- 00:54
No – the dollar amounts basically never change – he clearly has the “all you can eat" plan.
- 01:01
C “He is charged the same no matter how much time he spends online.” Correctamundo.
- 01:08
D “He is charged according to how much he downloads.”
- 01:11
Fortunately for Mark… no he’s not.
- 01:13
Or else he’d have to field some pretty tough questions from his mother… and the family therapist.
- 01:22
So the answer is C.
- 01:23
We also would have accepted that the answer is… “Mark really needs to get a life.”
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