Neco Model Questions Vol1 2017 Agricultural Science Question 23
Practice objective / multiple choice question 23 from the 2017 Neco Model Questions Vol1 Agricultural Science examination.
A survey of 100 wheat plants gave the following disease severity ratings (scale 0-5): 30 plants rated 0, 40 rated 1, 20 rated 2, 5 rated 3 and 5 rated 4. Using the disease severity index formula \(DS = \frac{\sum (rating \times number\;of\;plants)}{(max\;rating \times total\;plants)} \times 100\), calculate the disease severity percentage for the field.
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About This Question
This is Neco Model Questions Vol1 2017 Agricultural Science Question 23. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Agricultural Science examination.
Difficulty level: Medium .
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