# Interpreting Geographical Data

Year one statistics exam

• Summation sign
• Rounding
• Central tendency
• Variability
• Boxplots
• Standard deviations
• Normal distribution
• Sampling
• Reliability and standard errors
• Confidence intervals and t-distribution
• Colomn, charts and tables
• Hypothesis testing and one sample t-test
• Two sample t-test
• F-test
• Anova I
• Anova II
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• Created by: Sophie
• Created on: 04-01-15 13:38

## 1. What is the weighted average?

• When you calculate the average between data
• When you work out the fraction between the gaps of data, where each quartile is calculated
• Where each quartile is calculated is the average is calculated between them
• When you work out the difference between the gaps of data
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## 2. Which statement is incorrect about counting the standard errors from the mean (6.72 mean and 7.0 intended value)?

• Also need to know the range of values
• Also need to know the degrees of freedom
• Work out how may SE there are from the mean (6.72) to the sample (7.0)
• Work out the t-statistic which is the number of SE that the difference shows

## 3. Which is not a characteristic of an ANOVA I within country extreme example?

• When we can account of overall means as each country means, the country means are not significantly different, but are instead the same.
• When we can account for all the variance by using country means instead of overall means, the country means are significantly different.
• All the variation (this time SST=1) is within-country variation (SSE=1) and there is no between-country variation (SSM=0).

## 4. What does a Poisson frequency distribution graph show?

• Unusual things
• Usual things
• Non existent events
• Constant things

• Range
• Mode
• Median
• Mean