Introduction Range and quartile deviations are positional measures of dispersion, wherein all the observations are not taken into account in the calculation. Now we consider a measure of dispersion called mean deviation based on all observations. Consider the observation 3, 5, 6, 7, 9 A.M. = `(3+5+6+7+9)/(5)` = 6 The sum of the deviations of the items
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1. Resources in Abia State The capital of Abia State is Umuahia. Main towns in Abia State include: Aba, Akwette, Bende, Afikpo and Arochukwu Points of Interest: National War Museum at Umuahia where the Nigerian civil war and inventions are displayed. Aba – foremost electronics and indigenous technology city, Aba central Market Akwette – Blue
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Introduction In Samaria, there lived a sorcerer called Simon who made many magical signs to the people. The people- both rich and poor, educated and illiterate believed and gave him attention. He amazed the entire city. The people believed him and said- “This man is rightly called the great power of God.” But when Philip
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Definition of Agriculture Agriculture is the systematic cultivation of useful plants and the rearing of livestock under the management of man for the purposes of proving food and raw materials. It is the production of crops and rearing of animals for man’s use. It is the deliberate effort made by man to till the soil, cultivate
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Introduction Pathogenic or harmful micro-organisms have the ability to wipe out the whole of humanity directly or indirectly. They therefore must be controlled through some measures in order to stay healthy. Control of Harmful Micro-Organisms The use of drugs like antibodies performs key role in checking the spread of microorganisms Dehydration tends to inactivate the
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Grammatical Structures: Revision on finite and non-finite clauses Skill Focus: Avoiding Common errors Vocabulary Development: Register of Science Grammatical Structures: Revision on finite and non-finite clauses What is the structure of the following sentence? Deterred by the lack of future job prospects, many Nigerian secondary school students avoid science subjects. The sentence contains two clauses,
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Introduction Living things have the ability to carry out the following activities: reproduction, movement, feeding, excretion, growth, respiration, irritability and death which make them different from non-living things. The major groups of living things are plants and animals. Types of Activities of Living Things Movement: Living things like man, goat, cat, etc. move from one
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Meaning of Interpersonal Relationship Interpersonal Relationship has been explained to be the social association, connection or affiliation between two or more people. An interpersonal relationship is a strong, deep, or close association or acquaintance between two or more people that may range in duration from brief to enduring. Characteristics of Interpersonal Relationship 1. Interpersonal communication
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Direct Variation If a person buys some packets of sugar, the total cost is proportional to the number of packets bought. The cost of 2 packets at Nx per packet isN2x. The cost of 3 packets at Nx per packet isN3x. The cost of n packets at Nx per packet isNnx. The ratio of total
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Rounding off Numbers To ’round off’ or ‘approximate’ a number to a desired degree of accuracy, we- a. round the number up if the next digit is 5 or more b. round the number down if the next digit is less than 5. We represent approximately equal to as and approximately as ‘~’ Examples: 1. 73 is close to
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