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Probability

The probability of a certain event is a number expressing the likelihood that a specific event will occur, expressed as the ratio of the number of actual occurrences to the number of possible occurrences. In mathematics, it is a measure of how often an event will happen and is the basis of statistics.

14,643 Questions

Name of the very famous distribution that describes the frequency of the number of times a number comes up in a series of dice rolls?

The binomial distribution which, for large numbers of rolls can be approximated by the Gaussian distribution.

Is tossing 1 coin 100 times the same as tossing 100 coins 1 time?

Depends on if you are talking about probability. If so then yes. If not then 100 coins is more than 1 coin.

What is the probability of throwing a sum of 8 with 2 dice in nine throws?

The first thing to do is isolate how many ways there are to get 8 from two dice. These possibilities are:

2,6

3,5

4,4

5,3

6,2

so there are 5 possibilities. The probability of each of these combinations is (1/6)2 or 1/36, so the probability of getting 8 in one throw of 2 dice is 5/36

For 9 throws, it is easier to calculate the probability of never getting 8. This is (1-probability of getting 8)9. (1-5/36)9 = (31/36)9 which is 0.26033. So the probability of getting an 8 somewhere along the line is 1-0.26033 or 0.7397

What is strandard deviation?

It is a measure of how much individual values spread around the average.

How many different four-letter secret codes can be formed if the first letter must be an S or a T?

If the first two letters must be an S or a T, then there are three remaining places that can be one of 26 letters. This is equal to 26 * 26 * 26 * 2, or 35,152 possible combinations.

What country does green marble come from?

The quary closed some thirty years ago. It was in Delta, Pennsylvania, USA.

What is the difference between an event sample and a time sample?

An event sample is data points captured for a single event. A time sample are data points capture over a specific period of time.

What is the frequency for heads in a series of 100 tosses of a fair coin?

The theoretical frequency of heads will be .5 and as you do more and more coin tosses the observed frequency should get closer and closer to .5. With 100 tosses, it will be pretty close, but not exactly .5

Which pr option invovles members of govement to affect your recovery?

The public relations option that involves members of government to affect recovery is often referred to as government relations or lobbying. This approach entails engaging with policymakers and government officials to advocate for favorable legislation, funding, or support that can aid in recovery efforts. By leveraging these relationships, organizations can influence policy decisions that impact their recovery process and resources. Effective communication and collaboration with government entities can significantly enhance recovery outcomes.

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