Waec Model Questions Vol1 2018 Geography Question 4

The table below shows the daily weather observations recorded at a coastal weather station over a five‑day period. | Day | Temperature (°C) | Dew‑point (°C) | Atmospheric pressure (hPa) | Wind speed (km/h) | |-----|------------------|----------------|----------------------------|-------------------| | 1 | 28 | 22 | 1008 | 12 | | 2 | 30 | 24 | 1005 | 15 | | 3 | 27 | 21 | 1012 | 10 | | 4 | 29 | 23 | 1009 | 14 | | 5 | 31 | 25 | 1004 | 18 | Using the data provided, answer the following: a) Calculate the mean (average) temperature for the five‑day period. b) Determine the temperature range (difference between the highest and lowest temperature). c) Compute the average relative humidity for the period. Use the approximation: RH (%) = 100 – 5 × (T – Td), where T is temperature and Td is dew‑point. d) Identify the day with the highest atmospheric pressure and, based on the pressure trend, suggest the likely weather condition expected on the following day.