In research, examining variables is a major part of a study. There are three main types of variables: continuous variables can take any numerical value and are measured; discrete variables can only take certain numerical values and are counted; and categorical variables involve non-numeric groups or categories. To unlock this lesson you must be a Study.com Member.
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Nsanje, formerly Port Herald , town, southern Malawi, along the west bank of the Shire River and north of the Ndindi Marsh. It is home to the Manganja and Sena peoples, and as the countryâs southernmost town, it serves as a customs post on the Mozambique border. It is also a trade and transportation centre on the north-south Blantyre-Beira railway (completed 1935).