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Q: What are three ways to express the probability of an event that occurs 500 times out of 2000 total trials?
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What is the formula of experimental probability?

If an event occurs in n trials out of N experiments than the experimental probability of that event is n/N.


How do you calculate relative frequency probability?

You carry out an experiment repeatedly. Then the number of times that the selected even occurs divided by the total number of trials is the relative probability for that event.


When two events are independent the probability that one event occurs in no way affects the probability of the other event occurring true or false?

It is true.


The probability of an event is 20 percent How many times should you expect this event to occur in the given number of trials 15 trials 40 trials 75 trials 120 trials?

15 trials: 3 times 40 trials: 8 times 75 trials: 15 times 120 trials: 24 times But don't bet on it.


If an event has a 1 in 4 chance of occurring what is the probability of it happening to one individual in a sample of five?

If we assume that the probability of an event occurring is 1 in 4 and that the event occurs to each individual independently, then the probability of the event occurring to one individual is 0.3955. In order to find this probability, we can make a random variable X which follows a Binomial distribution with 5 trials and probability of success 0.25. This makes sense because each trial is independent, the probability of success stays constant for each trial, and there are only two outcomes for each trial. Now you can find the probability by plugging into the probability mass function of the binomial distribution.

Related questions

What is the formula of experimental probability?

If an event occurs in n trials out of N experiments than the experimental probability of that event is n/N.


What is the ratio of the number of times an event occurs to the total number of trials?

experimental probability


How can you use odd to find probability?

Odds of A to B in favour of an event states that for every A times an event occurs, the event does not occur B times. So, out of (A+B) trials, A are favourable to the event. that is, the probability of A is A/(A+B).


What is another name for Experimental Probability?

Another name for experimental probability is empirical probability. This is the ratio of the number of outcomes in which a specified event occurs to the total number of trials.


How do you calculate relative frequency probability?

You carry out an experiment repeatedly. Then the number of times that the selected even occurs divided by the total number of trials is the relative probability for that event.


What does empirical probability mean?

It is the probability of an event calculated from repeated trials of an experiment.


What is the definition for Probability?

Probability is described as the likelihood of a particular event happening. For example, say you are betting on a horse race, each horse has a particular probability of winning.The likelihood of an event occuringThe proportion of times an event occurs over a large number of trialsA ratio of successful outcomes to total possible outcomesFor a random event, the proportion of times an event occurs over a large nuber of trials


The what of an event is how many times it occurs?

Probability of an event is how many times it occurs.


Why does the probability of an event have to be between 0 and 1?

Probabilities are expressed as ratios, or more accurately, fractions. If an event will probably occur 1 time in 10 trials, its probability is 1/10, or 0.1. If the event happens every time (10 in 10, for example), the probability is 10/10 = 1.0. You can never have more than n occurrences in n trials. Conversely, if the event never occurs in 10 trials, its probability is 0/10 = 0.0. An event cannot occur fewer than 0 times. This is why the lower and upper bounds of all probabilities are 0 and 1, respectively.


What is the meaning of experiment Probability?

The experimental probability of an event is the probability that is calculated from repeated trials rather than from theoretical models.


What is the difference between probability and membership function?

Membership is Not the same as probability.v Probability describes the uncertainty of event occurrence .The probability is an uncertainty associated with time. vFuzziness describes event ambiguity , i.e., the degree to which an event occurs not whether it occurs


How do you get relative frequency?

The relative frequency of an event, from repeated trials, is the number of times the event occurs as a proportion of the total number of trials - provided that the trials are independent.