What data does Pearson’s large data set contain??
Information from weather stations.
When did the weather stations in Pearson’s large data set record data??
- May-Oct 1987
- May-Oct 2015
Why was Oct 1987 of interest??
Because of The Great Storm.
What are the units for mean temperature??
^{\circ} C
What are the units for total rainfall??
$mm$
What does tr/trace mean in relation to total rainfall??
Less than 0.05mm rain.
What are the units for total sunshine??
Hours.
To what accuracy are the units for total sunshine??
The nearest tenth of an hour.
What are the two different units for daily mean windspeed??
$\text{knots}/\text{kn}$ or the beaufort scale.
How many $mph$ in $1kn$??
$$ 1kn \to 1.15mph $$
What is the Beaufort scale??
A way of describing the wind speed.
What are the units for maximum gust??
$\text{knots}/\text{kn}$
What is the “maximum gust”??
The maximum instantaneous wind speed.
What are the units for humidity??
A percentage of water-air saturation.
What does 100% represent in terms of humidity??
The maximum amount of water saturation in the air.
What are the units for mean cloud cover??
Oktas.
What is an Okta??
Describes the amount of cloud coverage in the sky.
One Okta represents what fraction of the sky obscured by cloud??
$$ \frac{1}{8} $$
What are the units for mean visibility??
Metres.
How is mean visibility measured??
The amount that can be seen into the horizon during daylight.
What are the units for air pressure??
Hectopascals ($hPa$).
What are the four cardinal directions??
N, E, S, W.
What are the two ways wind direction is measured??
- A cardinal direction
- A bearing
What two data points about wind direction are recorded (not units)??
- Max gust direction
- Average wind direction
Where is Leuchards??
In Scotland.
Where is Leeming??
In the Midlands.
Where is Heathrow??
In London.
Where is Hurn??
Near Bournemouth.
Where is Camborne??
In Cornwall.
In what country is Bejing??
China.
In what country is Jacksonville??
USA.
In what country is Perth??
Australia.
In what hemisphere is Bejing??
North.
In what hemisphere is Jacksonville??
North.
In what hemisphere is Perth??
Australia.
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Metadata
date: 2020-09-29 18:38
tags:
- '@?stats'
- '@?year-1'
- '@?public'
- '@?school'
title: Stats - Large Data Sets