5-55. In a random sample of 10,000 college students, a research company found that 35.7% were involved in a
club and 27.8% studied 4 or more hours per day. When they reported their findings, the research company
indicated that 53.4% of college students were either involved in a club or they studied 4 or more hours per day.
Given this information, what is the probability that a college student is involved in a club and studies 4 or more
hours per day?
The probability that a college student is involved in a club and studies 4 or more hours per day is 9.92%.
Data and Calculations:
College student population = 10,000
Students involved in a club = 35.7% or 3,570 (10,000 x 35.7%)
Students who studied 4 or more hours per day = 27.8% or 2,780 (10,000 x 27.8%)
Students who involved in a club or studied 4 or more hours per day = 53.4% or 5,340 (10,000 x 53.4%)
The probability that a student, who is involved in a club, studies 4 or more hours per day is 9.92% (35.7% x 27.8%).
Thus, the probability that a student involves in a club and studies 4 or more hours per day is 9.92% or 992 students out of 10,000.
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Answer:
10.1
Explanation:
The Theory of Plate Tectonics suggests that the earth's lithosphere is broken up into slabs called
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Plate tectonics is the theory that Earth's outer shell is divided into large slabs of solid rock, called “plates,” that glide over Earth's mantle, the rocky inner layer above Earth's core. ... Below the lithosphere is the asthenosphere — a viscous layer kept malleable by heat deep within the Earth.
What is the most common substance that is dissolved in ocean water?
Answer:
The most common substance would be Sodium Chloride
In which regions of the world does the UN focus most of its attention on when attempting to separate
warring groups?
Answer:
Explanation:
Maintain International Peace and Security.
Protect Human Rights.
Deliver Humanitarian Aid.
Support Sustainable Development and Climate Action.
Uphold International Law.
17. Which is NOT true about oceanic and continental crust
Oceanic crust is made up of younger rocks
Continental crust is thicker than oceanic crust
Continental crust is able to sink into the mantle
Oceanic crust is made of silica and magnesium
Answer:
C. Continental crust is able to sink into the mantle
Explanation:
What are 10 methods used to uncover the past climates of the earth including their strengths and weakness
The ten methods used to uncover the past climates of the earth including their strengths and weakness includes:
Making an analysis of the samples of ice core.Making scientific observation of the remnants of glacial land forms.Making a survey of the sediments which are on the floor of the ocean.Checking the fossils of old vegetation.Checking sites of ancient volcanoes.Making calculations of the animals which went extinct during the Ice Age.Dating the fossil of dinosaurs.Making deep glacier explorations.Checking the concentration of greenhouse gases.Checking for plucked rocks and U-shaped valleys.Thousands and millions of years ago, the climate of the earth was much different and there were different animals and creatures around of which the most popular ones which have gone extinct are the dinosaurs.
With this in mind, humans were probably not around during this time or if they were, they would be unable to write down the climates which people of this day and age would properly interpret, therefore this is where paleoclimatology comes in as it studies the past climates of the earth through various methods which were mentioned above.
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As a young student how important a volcanoin your life
Answer:
very important
Explanation:
because its how you can change your life
In the two-substance mixtures you have investigated so far, are there any situations where there
is more than one correct answer? Explain.
Answer:
yes
Explanation:
because one can be saturated than the other or one might be dillute.
(homogenous and heterogeneous mixtures)
Based on the nature of mixtures, the two substances may homogenous or heterogeneous mixtures.
What are mixtures?Mixtures are substance composed of two or more constituents physically combined together.
Mixtures may be solids, liquids or gases.
Mixtures can also be classified as homogenous or heterogeneous.
Therefore, based on the nature of mixtures, the two substances may homogenous or heterogeneous mixtures.
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The radius of the circle is 5.5mm. What is the diameter?
Answer:
The diameter would be 11.
explain how weather and climate are also affected by geologic and geographic factors, such as mountains and ocean temperature
Answer: explanation on how geography affects the climate
Explanation:
Climate is the prevailing patterns of temperature and precipitation across a region. A region’s climate can be tropical or frigid, rainy or arid, temperate or monsoonal. Geography, or location, is one of the major determining factors in climate across the globe. Geography itself can be divided into components including distance from the equator, elevation above sea level, distance from water and topography, or the relief of the landscape.
Higher Latitudes Have Cooler Climates
Latitude is a measure of distance from the equator. Locations between the Tropic of Cancer and the Tropic of Capricorn, between 23 degrees north and 23 degrees south latitude, are considered tropical. As you move away from the equator, climates shift incrementally through subtropical, temperate, subarctic and, finally, arctic at the poles. The tilt of the Earth on its axis means that the further you get from the equator, the longer the area spends tilted away from the sun each year, and the cooler and more seasonal the climate.
Water Bodies Regulate Precipitation and Moderate Climate
Over 70 percent of the Earth’s surface is covered in water, so it makes sense that water bodies influence climate. Oceans and lakes are very good at storing the heat that is created when the sun’s energy is absorbed by the water. The water heats and adds moisture to the air above it, a process that drives the major air currents around the world. Water bodies also make the climate of adjacent land masses more moderate. They absorb extra heat during warm periods and release it during cooler periods. Warm, moist ocean air drives precipitation patterns around the world when it falls as precipitation as it is carried over cooler land masses.
Mountains Disrupt Air Flow
Mountain ranges are barriers to the smooth movement of air currents across continents. When an air mass encounters mountains, it is slowed and cooled because the air is forced up into cooler parts of the atmosphere in order to move over the obstruction. The cooled air can no longer hold as much moisture and releases it as precipitation on the mountain range. Once the air is over the mountain, it no longer has much moisture, and the leeward side of mountain ranges is drier than the windward side.
Higher Elevations Have Cooler Climates
Climates become cooler and the cold season lasts longer as elevation above sea level rises. This holds true for mountains and high-elevation plateaus, such as the steppes of Mongolia. Every 1.61 kilometers (1 mile) in elevation gain is roughly equivalent to moving 1,290 kilometers (800 miles) further from the equator. Mechanistically, higher elevations have lower air pressure, fewer atoms per unit of air to excite and, thus, cooler temperatures. Mountains frequently receive more precipitation than the surrounding lowlands, but many high-altitude plains are deserts because of their location on the leeward side of a mountain range or continental mass.
Explain how public policies are impacted by population demographics
Choose the best definition for migration.
Group of answer choices
The movement of groups from one country, place, or locality to another
The opposition offered in a magnetic circuit to magnetic flux
Withdrawal from one's position or occupation or from active working life
Travel into a country for the purpose of permanent residence there
Alfred Wegner proposed the theory of plate tectonics. Explain the theory and what evidence has been found to support his theory.
Answer:
Wegener supported his theory by demonstrating the biological and geological similarities between continents. South America and Africa contain fossils of animals found only on those two continents, with corresponding geographic ranges.
Explanation:
How early civilizations influence people of today? 5 paragraphs
10 points!! And brainly!!!
Answer:
the answer is the one you picked i think
Explanation:
Why is it important for all the phases of growth and reproduction to proceed correctly in order for a plant species to survive?
Explanation:
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The __________ are nomadic hunter-gatherers who inhabit the Kalahari Desert. A. Ewe B. San Bushmen C. Maasai D. Tuareg.
Answer:
they are the b) San Bushme
if not so comment so I will edit my answers
what global winds form much of the weather in the us?
Use the image to answer the question.
Which environmental challenges in Southeast Asia are most directly related to the activity shown?
Select the two correct answers.
A. earthquakes
B. deforestation
C. air pollution
D. flooding
E volcanic activity
How do subduction zones lead to the formation of volcanic activity?
Answer:
Thick layers of sediment may accumulate in the trench, and these and the subducting plate rocks contain water that subduction transports to depth, which at higher temperatures and pressures enables melting to occur and 'magmas' to form. The hot buoyant magma rises up to the surface, forming chains of volcanoes.
Which of the following is an example of a colonial legacy?
A. Pasta is a popular food in Uruguay.
B. Most South Americans are Roman Catholic.
C. Central America has a high population density.
D. Many Brazilians live in the United States.
Answer:
The answer you're looking for is Option B.
Explanation:
Which landform is formed when an oceanic crust and continental plate meet at a convergent plate margin
Answer:
Volcanoes, fold mountains, oceanic trenches
how does the elevation of the north china plain compare with that of the plateau of tibet
Answer:
The plateau of Tibet is a very tall plateau in southwestern China.
Explanation:
Explain how earthquakes form
Answer:
Explanation:
An earthquake is caused by a sudden slip on a fault. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel. In California there are two plates - the Pacific Plate and the North American Plate.
is Egypt a developing or developed country and why?
Answer:
Egypt is a developing country.
Explanation:
the possible HDI ( human development index) score is a 1.0. a country that scores less than 8.0 is considered developing.
Egypt curecently has a score of 0.707
The Tanakh includes a large number of stories concerned with
Answer:
the establishment of a enoumous jewish empire, i did it myself
Explanation:
The Tanakh includes numerous stories concerned with periods of slavery and struggle for the Jewish people.
What is Tanakh?The Tanakh, commonly known as the Hebrew Bible, is Judaism's holy literature, including the tales and teachings that constitute the cornerstone of the Jewish faith.
The history of the Jewish people, particularly their periods of servitude and struggle, is one of the primary topics of the Tanakh. The Tanakh contains stories like the Exodus, in which the Israelites were delivered from slavery in Egypt, and the Babylonian exile, in which the Jews were captured and forced to reside in Babylon.
The Tenakh is the primary sacred Jewish literature that controls every element of Jewish life. The Christian Bible's Old Testament is made up of the books of the Tenakh, however they are not in the same sequence.
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what countries are located in the northern region of africa?
Answer:
Explanation:The UN subregion of North Africa consists of 7 countries at the northernmost part of the continent -- Algeria, Egypt, Libya, Morocco, Sudan, Tunisia, Western Sahara. North Africa is an economically prosperous area, generating one-third of Africa's total GDP.
metamorphic rocks with a layered or banded look are called
Foliated metamorphic rocks have a layered or banded appearance that is produced by exposure to heat and directed pressure. Examples of foliated rocks include: gneiss, phyllite, schist, and slate.
Tundra form at opposite blank
of the Earth,
Answer:
A tundra forms because the area takes in more carbon dioxide than it produces. The tundra is one of Earth's three major carbon dioxide sinks. Plants indigenous to the tundra region do not undergo a regular photosynthetic cycle.
what happens when weathering and erosion work together?
Weathering is the mechanical and chemical hammer that breaks down and sculpts the rocks. Erosion transports the fragments away. Working together they create and reveal marvels of nature from tumbling boulders high in the mountains to sandstone arches in the parched desert to polished cliffs braced against violent seas.