Quick Vocab and situations over TWO weeks of learning Statistics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Population | The entire collection of people or objects being studied.
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| Sample | a group of people or objects selected FROM the POPULATION
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| Representative Sample | a sample that is ACCURATE *Good
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| Biased Sample | a sample that doesn't represent an important sub-population *Bad
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| One interval includes how many numbers? | two
ex: 35 - 40
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| To properly label a graph what is needed? | Title, horizontal and vertical labels
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| Give the interval: The intervals go by 2's... 10 | 10-12
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| Give the interval: The intervals go by 10's... 27 | 20-30
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| Give the interval: The intervals go by 100's... 89 | 0-100
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| If you made a Histogram and realized your data goes off the graph, what do you do? | Raise the vertical axis
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| Minimum | (Min) Smallest number in data
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| Maximum | (Max) Highest number in data
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| Range | G - L = R
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| Outliers | Random piece of data (unusually high or low)
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| Mean | Average
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| Median | Middle
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| How do you find the MEAN? | Add up all numbers and divide them by however ,many there are
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| How do you find the MEDIAN? | Line up data numbers least - greatest. Then mark them off left to right till you find the middle.
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| Name the parts of a 5 word summary | Minimum
Maximum
Lower Quartile
Upper Quartile
Median
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| Lower Quartile | Like a median but on the left side of it
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| Upper Quartile | Like a median but on the right side of it
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| How do you construct a BOX PLOT? | 5 word summary
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| What % of the data values are before the median on a BOX & WHISKER PLOT? | 25% + 25% = 50%
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| What % of the data values are before the upper quartile on a BOX & WHISKER PLOT? | 25% + 25% + 25% = 75%
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| What % of the data values are after the upper quartile on a BOX & WHISKER PLOT? | 25%
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| Does building a BOX & WHISKER PLOT involve using the 5 word summary? | YES
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| When looking at a BOX & WHISKER PLOT would you rather have data with/without outliers? | WITH - B/C the data is more specific. Otherwise it makes data look inaccurate.
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| When creating SCATTER PLOTS are labels needed on the dots? | NO
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| On SCATTER PLOTS are Titles and Labels on both AXES needed? | YES, on ALL graphs are they needed.
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| What is the word for an INCREASE or DECREASE on a SCATTER PLOT? | Correlation
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| Increase on a SCATTER PLOT is represented by: ... | Positive ( + )
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| Decrease on a SCATTER PLOT is represented by: ... | Negative ( - )
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| Trend Line | A line that FITS the pattern of data on the graph
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| Where should the TREND LINE be found on a SCATTER PLOT? | In the MIDDLE of the dots
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| Name the 4 options for a Sampling Plan | Convenience -
Systematic -
Voluntary Response -
Random
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| Convenience | Easy
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| Systematic | Patterned
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| Voluntary Response | Questioned chance of participation
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| Random | Equally likely, and variety
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Created by:
Zacfan0501
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