Neco 2018 Geography Question 40

Practice objective / multiple choice question 40 from the 2018 Neco Geography examination.

Neco 2018 Geography Objective / Multiple Choice Medium Difficulty

Question 40 NECO • 2018 • GEOGRAPHY • objective

In a 30‑day month the recorded daily rainfall amounts are: 0 mm on 12 days, 5 mm on 8 days, 15 mm on 6 days and 30 mm on 4 days. Calculate (i) the mean daily rainfall (in mm) and (ii) the coefficient of variation (CV = standard deviation / mean) expressed as a percentage, rounded to one decimal place.

A. Mean = 8.3 mm, CV ≈ 112.0%

B. Mean = 8.5 mm, CV ≈ 121.3%

Correct Answer C. Mean = 8.3 mm, CV ≈ 121.3%

D. Mean = 7.9 mm, CV ≈ 130.5%

Correct Answer

Correct Option:

Mean = 8.3 mm, CV ≈ 121.3%

This is Neco 2018 Geography Question 40. It is one of the objective questions from the 2018 Neco Geography examination.

Difficulty level: Medium .

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