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What else can I help you with?
Why are the events of spinning a spinner and rolling a number cube independent events?
Because the number cube is not sentient enough to know the result of the spinner and modify its own outcome accordingly. And conversely, the outcome of the spinner is not affected by the roll of the cube.
What is the probability of getting two heads in a row followed by three tails in a row?
If you toss a coin often enough, it is a certainty, so that the probability = 1. The probability of that outcome in the first five tosses of a coin is (1/2)5 = 1/32.
What is the probability that the random variable has a value greater then 3.2?
It depends on the possible range of the random numbers. The question, as stated, does not have enough information to answer. Please restate the question.
Can the probability of an outcome be zero?
Yes. But there are at times philosophical problems at stating that the probability of an outcome that either has never been observed is zero. As a supposition or assumption, we can say that a particular outcome is zero, but how do we prove it? For example, I might believe that it is physically impossible for a person to weigh more than 1,000 lbs as no human on earth weighs that much, but if just one person weighs more than a 1,000 lbs, I have to accept that this outcome has a finite probability. We can come to the conclusion of impossibility by our cumulative knowledge. For example, it is impossible for a person to run 200 mph. World athelete's running speeds are very close, far below 200 mph. I can't prove it rigorously, but it is a rational conclusion based on our knowledge. To most people, if something has a chance of success of one in a billion or one in a trillion, this is close enough to impossible. However, even with these low probabilities, the result is still not impossible. For example, most people would think that winning the lotto 10 times in a row would be impossible, but the probability is above zero, therefor possible.
What does you cannot make this determination mean?
It means you cannot decide that. In context, it could mean that you don't have the authority to make a certain decision, or it could mean that you don't have enough information. It could mean that you do not have the skills or resources to make the decision, or perhaps that you are biased in one way or another and cannot determine, in a disinterested fashion, what the outcome should be.
A contracting cloud of gas and dust with enough mass to form a star?
a protostar
What must happen before a protostar will glow?
Before a protostar can start glowing, it must finish collecting enough gas and dust to trigger nuclear fusion in its core. This process requires the protostar to reach a temperature and pressure high enough for hydrogen atoms to fuse together, releasing energy as light and heat.
What is a contracting cloud of gas and dust with enough mass to form a star?
it's a protostar
How would you describe the process of star formation?
Star formation is the process by which dense regions of gas and dust in space collapse under their own gravity, forming a protostar. As the protostar continues to accrete more material, its core becomes hot and dense enough for nuclear fusion to begin, leading to the birth of a new star.
What is the first step of stellar evolution?
The formation of a protostar from a nebula. As the protostar forms, it accretes more mass from the cloud and spins. As it gains more mass, it eventually becomes massive enough to ignite the core and become a star. The protostar is the first step in the evolution of any star.
How is a protostar created?
Sometimes. If the total mass is high enough, and if the cloud of dust and gas collapse to reach a high enough density and pressure, nuclear fusion can begin in the core and it will become a star. If the total mass is not high enough, it may collapse into a "brown dwarf".
What is the difference between a brown dwarf and a protostar?
A protostar is a star the is developing as is on the way to starting nuclear fusion. A brown dwarf is a failed star, one that failed to gather enough mass to start fusion.
What process causes a star to begging burning?
The protostar material contracts due to gravity; this heats it up, and increases the pressure. Eventually, the core gets hot enough to sustain nuclear fusion. For more details, read about protostars.
What is a developing star not yet hot enough to engage in nuclear fusion called?
A protostar. See related question.
What is the process by which a protostar is heated up to initiate nuclear fusion and become a star?
A protostar is heated up by gravitational forces causing it to contract and increase in temperature. Once the core reaches a high enough temperature and pressure, nuclear fusion reactions begin, releasing energy and making the protostar shine as a star.
When does a protostar become a star?
A protostar becomes a star when nuclear fusion begins in its core, primarily converting hydrogen into helium. This process generates the energy that allows the star to emit light and heat, officially making it a star.
What is the role of purchasing in material management?
The role of purchasing in material management is to make sure there is enough material so that production continues smoothly. Another role is to fund the materials at the lowest price possible.
