Large Data Set (Edexcel) questions

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Large Data Set (Edexcel) question collection

Review Large Data Set (Edexcel) questions for Maths, with correct answers shown and coverage across recognising Large Data Set variables; using weather and location context; interpreting units and measurements.

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Question 1

How many miles per hour is \(1\) knot approximately equal to?
  1. \(1.15\,\mathrm{mph}\)
  2. \(0.15\,\mathrm{mph}\)
  3. \(1.00\,\mathrm{mph}\)
  4. \(2.15\,\mathrm{mph}\)

Question 2

What does cloud cover of \(0\) oktas mean?
  1. Clear sky
  2. Complete overcast
  3. Missing cloud data
  4. Fog recorded

Question 3

What does cloud cover of \(8\) oktas mean?
  1. Complete overcast
  2. Clear sky
  3. Trace cloud
  4. Missing cloud data

Question 4

What unit is used for cloud cover?
  1. Oktas
  2. Knots
  3. Hectopascals
  4. Decametres

Question 5

What is daily maximum gust?
  1. Highest instantaneous windspeed
  2. Highest hourly mean windspeed
  3. Twenty-four-hour mean windspeed
  4. Total daily wind distance

Question 6

Relative humidity above \(95\%\) is most associated with...
  1. Mist and fog
  2. Clear visibility
  3. Strong gusts
  4. Falling pressure

Question 7

What unit is used for daily maximum relative humidity?
  1. Percent
  2. Oktas
  3. Knots
  4. Hectopascals

Question 8

How is daily mean temperature recorded?
  1. Degrees Celsius to \(1\) decimal place
  2. Degrees Celsius to the nearest integer
  3. Kelvin to \(1\) decimal place
  4. Fahrenheit to the nearest integer

Question 9

Wind direction is measured relative to what?
  1. True north
  2. Magnetic north
  3. The nearest coastline
  4. The direction of travel

Question 10

Wind direction bearings are rounded to the nearest what?
  1. \(10^\circ\)
  2. \(1^\circ\)
  3. \(5^\circ\)
  4. \(90^\circ\)

Question 11

What unit is used for daily mean windspeed?
  1. Knots
  2. Miles per hour
  3. Metres per second
  4. Oktas

Question 12

What unit is used for daily total rainfall?
  1. Millimetres
  2. Centimetres
  3. Hectopascals
  4. Decametres

Question 13

How is daily total sunshine recorded?
  1. Hours to \(1\) decimal place
  2. Minutes to the nearest minute
  3. Oktas to the nearest eighth
  4. Percent to the nearest integer

Question 14

Which list gives the four measured weather variables at every overseas LDS station?
  1. Temperature, rainfall, pressure and windspeed
  2. Temperature, rainfall, pressure and sunshine
  3. Temperature, rainfall, humidity and windspeed
  4. Temperature, cloud cover, pressure and windspeed

Question 15

What are the overseas Large Data Set locations?
  1. Beijing, Jacksonville and Perth
  2. Camborne, Hurn and Leuchars
  3. Heathrow, Leeming and Perth
  4. Beijing, Heathrow and Jacksonville

Question 16

Which list gives the five UK stations?
  1. Camborne, Heathrow, Hurn, Leeming and Leuchars
  2. Camborne, Heathrow, Beijing, Hurn and Leeming
  3. Heathrow, Hurn, Leeming, Jacksonville and Perth
  4. Camborne, Leuchars, Perth, Beijing and Hurn

Question 17

For rainfall recorded as \(\mathrm{tr}\), which interpretation of \(r\) is used in Edexcel questions?
  1. \(0<r\le 0.05\,\mathrm{mm}\)
  2. \(r=0\,\mathrm{mm}\)
  3. \(r>0.05\,\mathrm{mm}\)
  4. \(r\) is unavailable

Question 18

What does a wind-direction bearing identify?
  1. Where wind comes from
  2. Where wind travels towards
  3. Where the strongest gust faces
  4. Where the station lies from north

Question 19

A UK wind-direction value is \(40^\circ\). From which direction is the wind arriving?
  1. Roughly north-east
  2. Roughly south-east
  3. Roughly north-west
  4. Roughly south-west

Question 20

What unit is used for pressure?
  1. Hectopascals, \(\mathrm{hPa}\)
  2. Knots
  3. Oktas
  4. Millimetres

Question 21

Air at \(100\%\) relative humidity is...
  1. Saturated
  2. Dry
  3. At sea-level pressure
  4. At its daily maximum temperature

Question 22

What does the Beaufort scale classify?
  1. Wind force
  2. Sea-level pressure
  3. Rainfall amount
  4. Cloud cover

Question 23

A sampled temperature is \(\mathrm{n/a}\). How should it enter the sample mean?
  1. Omit it and reduce \(n\)
  2. Use zero
  3. Use \(0.025\)
  4. Use the previous value

Question 24

Cloud cover \(C\) is modelled as discrete uniform on \(0,1,\ldots,8\). What is \(P(C<4)\)?
  1. \(\frac{4}{9}\)
  2. \(\frac{3}{9}\)
  3. \(\frac{4}{8}\)
  4. \(\frac{5}{9}\)

Question 25

What unit is used for visibility?
  1. Decametres
  2. Metres per second
  3. Hectopascals
  4. Oktas

Question 26

Which pair contains both inland UK LDS stations?
  1. Heathrow and Leeming
  2. Heathrow and Hurn
  3. Camborne and Leuchars
  4. Leeming and Leuchars

Question 27

Which location is in the Southern Hemisphere?
  1. Perth
  2. Beijing
  3. Jacksonville
  4. Leuchars

Question 28

Which UK station is furthest north?
  1. Leuchars
  2. Camborne
  3. Heathrow
  4. Hurn

Question 29

Which months are included in each data year?
  1. May to October
  2. January to June
  3. March to August
  4. July to December

Question 30

Which pair of years is used in the large data set?
  1. 1987 and 2015
  2. 1987 and 2005
  3. 1997 and 2015
  4. 2015 and 2016

Question 31

Which season is June to August in Perth?
  1. Winter
  2. Spring
  3. Summer
  4. Autumn

Question 32

How should \(\mathrm{tr}\) rainfall be cleaned without changing the sample size?
  1. Replace each \(\mathrm{tr}\) with \(0.025\,\mathrm{mm}\)
  2. Delete each \(\mathrm{tr}\) row
  3. Replace \(\mathrm{tr}\) with \(\mathrm{n/a}\)
  4. Replace \(\mathrm{tr}\) with \(0.5\,\mathrm{mm}\)

Question 33

Which UK weather station is in Cornwall?
  1. Camborne
  2. Hurn
  3. Leeming
  4. Leuchars

Question 34

Which UK weather station is in Dorset?
  1. Hurn
  2. Camborne
  3. Leeming
  4. Leuchars

Question 35

Which UK weather station is in North Yorkshire?
  1. Leeming
  2. Heathrow
  3. Hurn
  4. Leuchars

Question 36

Which UK weather station is in Scotland?
  1. Leuchars
  2. Camborne
  3. Heathrow
  4. Hurn

Question 37

Which UK weather stations are on the coast?
  1. Camborne, Hurn and Leuchars
  2. Heathrow, Hurn and Leeming
  3. Camborne, Heathrow and Leeming
  4. Leeming, Heathrow and Leuchars

Question 38

A weather variable has mean \(1015\) and standard deviation \(10\). Which LDS variable is most plausible?
  1. Daily mean sea-level pressure
  2. Daily mean temperature
  3. Daily total rainfall
  4. Daily maximum relative humidity

Question 39

How many daily records are in one station-year sheet from 1 May to 31 October?
  1. \(184\)
  2. \(366\)
  3. \(180\)
  4. \(365\)

Question 40

Why can deleting every \(\mathrm{tr}\) rainfall row bias a sample mean?
  1. It selectively removes small positive values
  2. It selectively removes the largest values
  3. It converts millimetres into centimetres
  4. It duplicates every dry-day value

Question 41

What type of variable is daily mean cloud cover, recorded as integer oktas from \(0\) to \(8\)?
  1. Discrete quantitative
  2. Continuous quantitative
  3. Nominal categorical
  4. Ordinal categorical

Question 42

Beaufort descriptions such as calm, light air and light breeze form which type of data?
  1. Ordered categorical data
  2. Unordered categorical data
  3. Continuous quantitative data
  4. Discrete quantitative data

Question 43

Which LDS variable often has many zero values, making a normal model unsuitable?
  1. Rainfall
  2. Temperature
  3. Sea-level pressure
  4. Windspeed

Question 44

Which pair can be plotted from a Perth LDS sheet without using another source?
  1. Temperature and pressure
  2. Sunshine and humidity
  3. Maximum gust and visibility
  4. Cloud cover and sunshine

Question 45

A rainfall-on-sunshine regression has positive gradient. What follows?
  1. Higher sunshine predicts higher rainfall
  2. Higher sunshine predicts lower rainfall
  3. Higher sunshine causes higher rainfall
  4. No linear association is predicted

Question 46

Daily mean visibility is \(800\) decametres. What distance is this?
  1. \(8\,\mathrm{km}\)
  2. \(0.8\,\mathrm{km}\)
  3. \(80\,\mathrm{km}\)
  4. \(800\,\mathrm{km}\)

Question 47

In Hurn's May-October 2015 data, a variable has mean \(14.1\) and standard deviation \(2.9\). Which LDS variable is most plausible?
  1. Daily mean temperature
  2. Daily total sunshine
  3. Daily mean total cloud
  4. Daily maximum relative humidity

Question 48

In Heathrow's May-October 2015 data, a variable has mean \(89.6\) and standard deviation \(6.6\). Which LDS variable is most plausible?
  1. Daily maximum relative humidity
  2. Daily mean temperature
  3. Daily maximum gust
  4. Daily mean pressure

Question 49

In Hurn's May-October 2015 data, a variable has mean \(2293\) and standard deviation \(615\). Which LDS variable is most plausible?
  1. Daily mean visibility
  2. Daily mean pressure
  3. Daily mean wind direction
  4. Daily maximum relative humidity

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Review Large Data Set (Edexcel) questions for Maths, with correct answers shown and coverage across recognising Large Data Set variables; using weather and location context; interpreting units and measurements.

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