A team of oceanographers monitored sea surface temperatures (SST, in ) at three distinct coral reef monitoring stations (, , and ) during a 4-month summer observation period.
Table 1:
| Station | June SST () | July SST () | August SST () | September SST () |
|---|---|---|---|---|
| 27.5 | 28.5 | 29.5 | 28.5 | |
| 28.0 | 29.0 | 30.0 | 31.0 | |
| 26.5 | 27.0 | 28.5 | 28.0 |
Based on Table 1, what is the difference between the average 4-month SST at Station and the average 4-month SST at Station ?
- Cevap
- B
- C
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Cevap
To find the difference between the 4-month average SSTs at Station S₂ and Station S₃, first sum and average the monthly temperatures for each station. For Station S₂, the sum is 28.0 + 29.0 + 30.0 + 31.0 = 118.0 °C, and the average is 118.0 / 4 = 29.5 °C. For Station S₃, the sum is 26.5 + 27.0 + 28.5 + 28.0 = 110.0 °C, and the average is 110.0 / 4 = 27.5 °C. The difference between these two averages is 29.5 °C - 27.5 °C = 2.0 °C.
Adım Adım Çözüm
Anahtar Kavram
Calculating average values across multiple data points in a table and finding their numerical difference.