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A die is loaded so that the number 6 comes up three times as often as any other number What is the probability of rolling a 1 or a 6?
Wiki User
∙ 14y ago
If you roll the die one time, there is a 1/3 probability that you will get a 1 or a 3.
There are 6 possibilities: 1,2,3,4,5,6-----> This number goes on the bottom of your fraction because it is what the probability is out of.
You want 2 different numbers: 1,6--------> This goes on the top because those are the 2 numbers you want.
So the fraction (probability) is 2/6, which simplifies to 1/3.
Wiki User
∙ 14y ago
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A coin is biased so that the probability a head comes up when it is flipped is 0.6 What is the expected number of heads that comes up when its flipped 10 times?
Multiply the probability by the number of times the experiment was carried out. 0.6x10=6
How do you calculate probability?
Probability refers to the likelihood of an event occurring. As such, calculating the same involves dividing the chances of an event occurring by the probable number of times that it can occur.Probability is a measure of the likelihood of an event. There are different ways to calculate probability it all depend on what probability you are trying to calculate. The general formula to calculate a probability is to divide the number of event you are trying to calculate the probability for by the total number of out comes.Think of a dice the probability of rolling a 1 is equal to 1 (there is one way we can roll a one) divide by 6 ( the total number of possible out comes, i.e. 1/6.The question is too broad. Please re-ask the question with more specifics.In general, you divide the number of anticipated outcomes by the number of possible outcomes. For instance, the probability of drawing an ace in a standard deck is 4 in 52, or 1 in 13, or 0.0769
A six sided cube numbered 1 through 6 is rolled 120 timesThe number 4 comes up 19 times what is the theoretical probability of rolling a 4?
Because we are only modeling one event, all six outcomes of the die are equally possible. The probability of rolling a four (or, for that matter, any number) is 1/6, or .166666 repeating. Now, since we are modeling 120 rolls, the theoretical number of outcomes of four (or, again, any number) is 1/6 * 120 = 20 outcomes. The second sentence of the problem is unnecessary.
What is the difference between experimental and theoretical probability?
The difference between experimental probability and theoretical probability is that experimental probability is the probability determined in practice. Theoretical probability is the probability that should happen. For example, the theoretical probability of getting any single number on a number cube is one sixth. But maybe you roll it twice and get a four both times. That would be an example of experimental probability.
A gumball machine contains Orange gumballs W blue gumballs and W green gumballs.What is the probability that the next gumball comes out will be orange?
The probability is X/(X + 2W) where X is the number of orange gumballs.
What does estimated experimental probability mean please someone answer?
One way of finding the probability is to carry out an experiment repeatedly. Then the estimated experimental probability is the proportion of the total number of repeated trials in which the desired outcome occurs.Suppose, for example you have a loaded die and want to find the probability of rolling a six. You roll it again and again keeping a count of the total number of rolls (n) and the number of rolls which resulted in a six, x. The estimated experimental probability of rolling a six is x/n.
What does probability of zero mean?
Probability of zero means that there is no chance that the event will happen. First example that comes to mind: What is the probability of rolling a 7 on one roll of a standard six-sided die. Well you can't, so the probability of this happening is zero.
A coin is biased so that the probability a head comes up when it is flipped is 0.6 What is the expected number of heads that comes up when its flipped 10 times?
Multiply the probability by the number of times the experiment was carried out. 0.6x10=6
How do you calculate probability?
Probability refers to the likelihood of an event occurring. As such, calculating the same involves dividing the chances of an event occurring by the probable number of times that it can occur.Probability is a measure of the likelihood of an event. There are different ways to calculate probability it all depend on what probability you are trying to calculate. The general formula to calculate a probability is to divide the number of event you are trying to calculate the probability for by the total number of out comes.Think of a dice the probability of rolling a 1 is equal to 1 (there is one way we can roll a one) divide by 6 ( the total number of possible out comes, i.e. 1/6.The question is too broad. Please re-ask the question with more specifics.In general, you divide the number of anticipated outcomes by the number of possible outcomes. For instance, the probability of drawing an ace in a standard deck is 4 in 52, or 1 in 13, or 0.0769
A six sided cube numbered 1 through 6 is rolled 120 timesThe number 4 comes up 19 times what is the theoretical probability of rolling a 4?
Because we are only modeling one event, all six outcomes of the die are equally possible. The probability of rolling a four (or, for that matter, any number) is 1/6, or .166666 repeating. Now, since we are modeling 120 rolls, the theoretical number of outcomes of four (or, again, any number) is 1/6 * 120 = 20 outcomes. The second sentence of the problem is unnecessary.
What formula is used to find the theoretical probability of an event?
Expected successes= Theoretical Probability · Trials P(event) = Number of possible out comes divided by total number of possible
What is the probability of rolling a 4 and a 1 on a 6 sided die?
The answer depends on whether or not order is important: If you want a 4 first, then a 1, the probability is (1/6) x (1/6) = (1/36) =~ 0.028. If you don't care whether the four or the one comes first, then the probability is 2 * (1/36) =~ 0.056.
What is the probability if something comes out 70 percent?
The probability is that it comes out 7 times out of 10 tries, or 70% of the times.
Difference between variables and probability distribution?
Assuming you mean random variable here. A random variable is term that can take have different values. for example a random variable x that represent the out come of rolling a dice, that is x can equal 1,2,3,4,5,or 6. Think of probability distribution as the mapping of likelihood of the out comes from an experiment. In the dice case, the probability distribution will tell you that there 1/6 the time you will get 1, 2,3....,or 6. this is called uniform distribution since all the out comes have that same probability of occurring.
A gumball machine contains Orange gumballs W blue gumballs and W green gumballs.What is the probability that the next gumball comes out will be orange?
The probability is X/(X + 2W) where X is the number of orange gumballs.
Is rolled What are the chances that a number divisible by 2 comes up?
You roll 1 red and 1 white die. What is the probability that the number on the red die is the same as the number on the white die?
What is the difference between experimental and theoretical probability?
The difference between experimental probability and theoretical probability is that experimental probability is the probability determined in practice. Theoretical probability is the probability that should happen. For example, the theoretical probability of getting any single number on a number cube is one sixth. But maybe you roll it twice and get a four both times. That would be an example of experimental probability.
