Just as the Kingdoms of West Africa Were Linked to the Wider

question 70

Multiple Choice

Just as the kingdoms of west Africa were linked to the wider world by trans-Saharan trade,the kingdoms of east Africa were linked mainly by

• A) Egyptian trade.
• B) Indian Ocean trade.
• C) trans-Atlantic trade.
• D) south African trade.
• E) Persian Gulf trade.

---

Definitions:

Confidence Interval

It expresses the degree of uncertainty or certainty in a sampling method, represented as a range within which an estimated parameter is expected to lie.

Alpha (α)

In statistics, it represents the significance level, a threshold determining the probability of rejecting a true null hypothesis.

Population Standard Deviation

Measures the dispersion of a set of data points in a population from its mean, indicating how spread out the data points are.

Interval Estimate

An estimate of a population parameter that provides a range of values believed to contain the parameter with a certain level of confidence.