Neco Model Questions Vol1 2024 Geography Question 4

Practice objective / multiple choice question 4 from the 2024 Neco Model Questions Vol1 Geography examination.

Neco Model Questions Vol1 2024 Geography Objective / Multiple Choice Hard Difficulty
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2024 • GEOGRAPHY • objective

In a certain region the probability of a flood in any given year is 0.12. The probability of a landslide depends on whether a flood occurs: if a flood occurs, the probability of a landslide that year is 0.25; if no flood occurs, the probability of a landslide is 0.05. Compute (a) the probability that in a randomly selected year the region experiences at least one of the two hazards, and (b) the expected number of years in a 20‑year period in which both hazards occur in the same year.

Answer Options

Correct Answer A. a) 0.164 (16.4%); b) 0.6 years
B. a) 0.180 (18.0%); b) 0.8 years
C. a) 0.164 (16.4%); b) 1.0 years
D. a) 0.150 (15.0%); b) 0.5 years
Correct Answer
A
Correct Option:
a) 0.164 (16.4%); b) 0.6 years

About This Question

This is Neco Model Questions Vol1 2024 Geography Question 4. It is one of the objective questions from the 2024 Neco Model Questions Vol1 Geography examination.

Difficulty level: Hard .

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