Question
A bag contains 4 white balls, 9 red balls, and 5 green
balls. Two balls are drawn at random. Find the probability that the two balls are red.Solution
Number of ways of selecting two red balls = 9 Câ‚‚
Total number of balls = 4 + 9 + 5 = 18
Number of ways of selecting two balls = 18 Câ‚‚
Probability = 9 C₂ ÷ 18 C₂ = (9 × 8) ÷ (18 × 17) = 72 ÷ 306 = 4/17
Which Sustainable Development Goal (SDG) focuses on "Life on land"?
Price elasticity of supply of food products is generally
In insect flight, what term is used to describe the upward movement of wings during each stroke?
_______ marking decisions in research objectives.
Method which is recommended for stabilizing gullies on slopes ranging from 11-15%?
Which process describes the mixing of soil by earthworms?
The production indifference curve is also known as:Â
The model of contract farming involves subcontracting by the buyers to intermediaries who formally or informally contract the farmers called:
The bulk density of sandy soil is approximately:
The main purpose of a farmer is ...................................?
