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Biblioteka

Day 10 Ch 13 Review

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Posljednje ažuriranje about 5 years ago
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Pitanje 1
1.

Pitanje 2
2.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Enter the data, use your calculator to calculate the 5# summary.

Stat, edit, stat, calc, 1-var stats.

Make sure the list agrees with the location of your data.

List the 5# summary separating the numbers by commas.

Ex. 3.1, 5.3, 12.6, 15.4, 21.3

Pitanje 3
3.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Enter the data, use your calculator to calculate the mean (x-bar) and the standard deviation (Sx).

Stat, edit, stat, calc, 1-var stats.

Make sure the list agrees with the location of your data.

List the mean and standard deviation separated by commas. Round to three places past the decimal point.

Ex. 13.457, 11.231

Pitanje 4
4.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Think back to #1, the description of the histogram.

Which summary statistics (mean and Std Dev OR Median and IQR) would be appropriate for describing the data distribution?

Why?

Select the two correct answers.

Pitanje 5
5.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Refer to #2, the 5# summary.

Calculate the IQR.

Describe (interpret) what it shows.

Select the two correct answers.

Pitanje 6
6.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Refer to #2, the 5# summary.

Calculate the IQR.

Calculate the lower and upper fences.

List them separated by a comma: lower fence, upper fence.

Round to one place past the decimal.

Ex. 5.4, 45.3

Pitanje 7
7.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Refer to #2, the 5# summary.

Calculate the IQR.

Calculate the lower and upper fences.

Are there any outliers? If so, identify them.

Pitanje 8
8.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Refer to #2, the 5# summary, the IQR and the calculated lower and upper fences.

If the value of 74.1 inches of rain were added to the data, would it be an outlier?

How do you know?

Pitanje 9
9.

The number of hours slepton the weekend was recorded for a statistics class. The data distribution is shown below:

Which summary statistics are appropriate for describing the data distribution?

Why?

Select the correct answer below.

Pitanje 10
10.

The number of hours slepton the weekend was recorded for a statistics class. The data distribution is shown below:

If a student missed class but added his data the next day, he slept 3 hours because he had a huge project due on Monday. What statistics would be changed and how?

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Standard Deviation

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Remain roughly the same

Mean

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Remain roughly the same

Range

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Increase

Median

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Decrease

IQR

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Increase

Pitanje 11
11.

The number of hours slepton the weekend was recorded for a statistics class. The data distribution is shown below:

Using the data above, how many students were present on the day the data was collected?

What is the range as a single number?

Enter both below separated by a comma.

Ex. # students, range

Pitanje 12
12.

The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Refer to the 5# summary:

Min= 8.8, Q1= 19.7, Median= 27.3, Q3 = 40.9, Max= 52.2

Interpret the quartiles below by matching them with their correct interpretation.

Note, there are extra answers that will not be used.

Stavka koja se može prevućiarrow_right_altOdgovarajuća stavka

Q1

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25% of the precipitation is less than 19.7. in.

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75% of the precipitation is greater than 19.7. in.

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75% of the precipitation is less than 19.7 in.

Median

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25% of the precipitation is greater than 19.7

Q1

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50% of the precipitation is less than 27.3 in.

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50% of the precipitation is greater than 27.3%

Q3

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50% of the precipitation is less than 40.9 in.

Median

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75% of the precipitation is less than 40.9%

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Pitanje 13
13.

Which measure of center would be more appropriate for the data shown by the histogram(mean or median)?

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Pitanje 14
14.

Which measure of center would be greater or would they be the same (mean or median)?

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Pitanje 19
19.

Describe the shape of the histogram to the left:

Select all that apply.

There are two correct answers.

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The annual precipitation, as measured by the National Weather Service, for Green Ridge, Wisconsin was recorded by environmental scientists interested in climatological changes.

Enter the data, use your calculator to create a histogram (Stat, Edit, then 2nd, y=, select a histogram).

Use ‘window’ to clean up the distribution (Xmin=0, Xmax=60, Xscl=5, Ymin= -1, Ymax=8).

Use ‘graph’ to view the histogram.

Describe the histogram, select all that are correct. Use the list of actual data for your spread (range). Use the interval to show the center.

Remember to CUSS about the description.

Pitanje 15
15.

Which measure of center would be more appropriate for the data shown by the histogram(mean or median)?

Pitanje 16
16.

Which measure of center would be greater or would they be the same(mean or median)?

Pitanje 17
17.

Which measure of center would be more appropriate for the data shown by the histogram(mean or median)?

Pitanje 18
18.

Which measure of center would be greater or would they be the same?

Pitanje 20
20.

Which summary statistics would be appropriate to record for the histogram?

Pitanje 21
21.

Which boxplot corresponds the most closely with the histogram?