In 2011, the global population was approximately 7 billion people. Given the Earth's total land area of about 148.9 million square kilometers, the average population density was roughly 45 to 47 persons per square kilometer. This figure provides a general measure of how human population is distributed across the habitable land surface of the planet.

Azerbaijani, often referred to as Azeri, is a Turkic language and serves as the official state language of Azerbaijan. It is spoken by the vast majority of the population and is closely related to Turkish. While the country has a Muslim-majority population, the linguistic roots of the nation are distinct from Persian or other Central Asian languages like Uzbek or Tajik.

Morocco is a North African nation with a population that is overwhelmingly Muslim. Demographic data and various international reports consistently estimate that approximately 98% to 99% of the Moroccan population adheres to Islam, making it the predominant religion in the country.

Indonesia is the world's most populous Muslim-majority nation. With over 230 million Muslims, it surpasses other nations like Pakistan, India, and Bangladesh in total number of adherents to the Islamic faith, making it the largest Islamic country by population.

Brunei Darussalam is a sovereign state located on the north coast of the island of Borneo in Southeast Asia. Islam is the official religion of the country, and the vast majority of the population adheres to the Islamic faith. Statistical data consistently indicates that the Muslim population constitutes a significant majority, with estimates frequently placing the figure near 66% of the total national population.

Lebanon is characterized by a diverse religious landscape. While official census data is dated, various demographic estimates suggest that approximately 60% of the population adheres to Islam, divided between Sunni and Shia branches. The remaining population consists primarily of various Christian denominations and the Druze community, reflecting the country's unique sectarian political and social structure.

In demographic studies of Cyprus, the population is primarily divided between Greek Cypriots and Turkish Cypriots. Given the provided figure of 19% for the Turkish ethnic group, the remaining portion of the population, which is identified as Greek Cypriot, accounts for 81% of the total, assuming these are the two primary groups.

Kazakhstan is the largest landlocked country in the world and the largest Muslim-majority country by land area. Following the dissolution of the Soviet Union, it emerged as a significant nation in Central Asia. While Algeria was previously considered the largest in Africa, Kazakhstan's vast territory spans across both Central Asia and Eastern Europe, making it the leader in total surface area among Muslim-majority states.

The Maldives is an archipelagic nation located in the Indian Ocean. It is widely acknowledged as the smallest Islamic country in the world by both land area and population. Comprising a series of coral atolls, its total landmass is significantly smaller than that of other Muslim-majority nations like Brunei, Syria, or Morocco, making it the smallest sovereign state within the Organization of Islamic Cooperation.

Malaysia is a multi-ethnic and multi-religious country, but Islam is the official religion of the federation. The demographic data consistently shows that Muslims constitute the majority of the population. Among the provided options, 'Over 50%' is the most accurate general descriptor for the Muslim majority status within the Malaysian demographic landscape.