Experimental Design B/C

[zannash]

Could we try doing stuff like questions (because little writeups are harder to do than questions)? I know this is kind of sketchy, but there is still a lot of knowledge in Ex. Design. We could ask stuff like, "Name the formula to calculate the average of a set of numbers x₁ to x_n," or "What is a controlled variable?" Let me know your guys' thoughts on this.

That sounds great!! I love the idea. We should do that.

[dxu46]

Could we try doing stuff like questions (because little writeups are harder to do than questions)? I know this is kind of sketchy, but there is still a lot of knowledge in Ex. Design. We could ask stuff like, "Name the formula to calculate the average of a set of numbers x₁ to x_n," or "What is a controlled variable?" Let me know your guys' thoughts on this.

That sounds great!! I love the idea. We should do that.

Okay! I'll let sg2themax start because he answered origamiplanet's post.

[OrigamiPlanet]

Could we try doing stuff like questions (because little writeups are harder to do than questions)? I know this is kind of sketchy, but there is still a lot of knowledge in Ex. Design. We could ask stuff like, "Name the formula to calculate the average of a set of numbers x₁ to x_n," or "What is a controlled variable?" Let me know your guys' thoughts on this.

That sounds great!! I love the idea. We should do that.

Okay! I'll let sg2themax start because he answered origamiplanet's post.

Anything works so long as it's related one way or another. My idea was only a suggestion, so we can go anywhere we want with this.

[dxu46]

It seems like sg2themax isn't posting so I'll post the first question.

Question 1: (Click to Show Hidden Text)

1. Define and list at least 3 measures of central tendency.
2. Define and list at least 3 measures of variation.

[OrigamiPlanet]

It seems like sg2themax isn't posting so I'll post the first question.

Question 1: (Click to Show Hidden Text)

1. Define and list at least 3 measures of central tendency.
2. Define and list at least 3 measures of variation.

1. Mean, median and mode
2. Variance, interquartile range and standard deviation

[dxu46]

It seems like sg2themax isn't posting so I'll post the first question.

Question 1: (Click to Show Hidden Text)

1. Define and list at least 3 measures of central tendency.
2. Define and list at least 3 measures of variation.

1. Mean, median and mode
2. Variance, interquartile range and standard deviation

1. Define and list at least 3 measures of central tendency.
2. Define and list at least 3 measures of variation.

But otherwise correct. Your turn.

[OrigamiPlanet]

1. Define and list at least 3 measures of central tendency.
2. Define and list at least 3 measures of variation.

But otherwise correct. Your turn.

Oh whoops, well mean is the average of all the data, median is the center of the data, and mode is the most common data point. Variance is the distance a point is from it's average value, standard deviation quantifies the separation, and interquartile range will catergorize the data into four different ranges.

Question 2 (Click to Show Hidden Text)

1. Give the general "formula" for writing a hypothesis.
2. What is a histogram? When should it be used?
3. Compare and contrast systematic and random errors.

[dxu46]

Question 2 (Click to Show Hidden Text)

1. Give the general "formula" for writing a hypothesis.
2. What is a histogram? When should it be used?
3. Compare and contrast systematic and random errors.

Bit late, but... (Click to Show Hidden Text)

1. If I change the IV, then the DV will change because the rationale.
2. It is a graph used to show frequency of numerical values.  It should be used instead of a bar graph when the IVs are numbers but do not show change that would be better shown using a line graph.
3. A systematic error is due to one or more mistakes a tool has that makes the data inaccurate, but still would show trends, etc.  A random error is due to the limited precision of the experimenter and/or tool.  It is basically a systematic error in one data point.

[OrigamiPlanet]

Question 2 (Click to Show Hidden Text)

1. Give the general "formula" for writing a hypothesis.
2. What is a histogram? When should it be used?
3. Compare and contrast systematic and random errors.

Bit late, but... (Click to Show Hidden Text)

1. If I change the IV, then the DV will change because the rationale.
2. It is a graph used to show frequency of numerical values.  It should be used instead of a bar graph when the IVs are numbers but do not show change that would be better shown using a line graph.
3. A systematic error is due to one or more mistakes a tool has that makes the data inaccurate, but still would show trends, etc.  A random error is due to the limited precision of the experimenter and/or tool.  It is basically a systematic error in one data point.

Yup! Your turn!

[dxu46]

Question (Click to Show Hidden Text)

List two methods for making an Experimental Control and when they appropriate to use.

Just confirmed: my topics for this year are the Statement of Problem, Hypothesis, Variables, Experimental Control, and Conclusion. Quite different from last year, which was Quantitative Data(table and graph), statistics, and Errors...crying inside