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Continue Learning about Math & Arithmetic

What is the domain of a discrete function?

The domain is the possible values that can be input into the function and produce a real number output.


What will produce a large value for the chi-square statistic?

A chi-square statistic can be large if either there is a large difference between the observed and expected values for one or more categories. However, it can also be large if the expected value in a category is very small. In the first case, it is likely that the data are not distributed according to the null hypothesis. In the second case, it can often mean that that, because of low expected values, adjacent categories need to be combined before the chi-square statistic is calculated.


What is the expected level for year 3 in English?

In Year 3, students are typically expected to demonstrate a growing proficiency in English, including reading, writing, and speaking skills. They should be able to read age-appropriate texts fluently, understand main ideas and details, and make inferences. In writing, they are expected to produce clear sentences, use punctuation correctly, and create coherent paragraphs. Additionally, students should engage in discussions, express their ideas clearly, and expand their vocabulary.


What is the probability of rolling a 5 or a 9 with two dice?

There are 8 possible combinations that would produce a 5 or 9 and 8/36=2/9.


How do science and math depend on each other?

Mathematics makes it possible for scientists to produce much more accurate and informative descriptions of what they learn and observe about how the world works, and in turn, science makes possible computer technology, with which it is much easier to do mathematics. Even a humble calculator is a technological device made possible by science.