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kakasveta [241]
3 years ago
10

There are three children aged three, four, and five in a room. If another four-year-old child enters the room, what will happen

to the mean and variance?
Social Studies
1 answer:
frosja888 [35]3 years ago
3 0

Explanation:

           'Mean' may be defined as the average of all the give terms and then add the sum total by the number of terms. It is used to determine the central tendency   of the given data in the question.

          'Variance' is the measure of how far any set of data are spread out. It is determined by taking the average of all the squared differences from each term to the mean.

            In the context, when another four year old child enters the room  having a three year, four year and a five year child, the mean age of the children does not change and will remain the same. However the variance will decrease.

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Answer:

Screener

Explanation:

A screener is a series of qualifying questions to determine if the respondent fits specific criteria to participate in a research study. The screener helps the interviewer get his/her target audience and it's a vital step in carrying out survey as it ensures data validity and credibility. The question, " Have you been snow skying in the past year" asked by the interviewer is a screening question.

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Select the correct definition.Select the correct definition.Spatial discrimination allows us to recognize submodalities of a par
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Answer:

  • Spatial discrimination: allows us to recognize submodalities of a particular sensation.
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Explanation:

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  • Perception is the way any stimuli is first recibed, by the brain receptors. Is the first way a stimuli enters the brian.
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  • Pattern recognition: when perception works fine, the brain works to learn repetition or familiar stimulis, and this is how patterns are built and then recognition of them appear. This is a fundamental process of devepolment when a baby first recongnizes his mother's face for example.
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4 years ago
When did the two party political system first develop brainly
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The two-party political system first emerged between 1796 and 1824, during the First Party System period.

The First Party System development in American governmental experiences endure nearly from 1796 to 1824 and was from contest middle from two points the Federalist and Democratic-Republican bodies. During the First Party System, elections enhanced a method of governmental debate, and new bodies arose as a match to interest groups.

The First Party System accompanied the Era of Good Feelings (nearly middle from two points 1814 and 1830) and the breakdown of the creepy federalists against Andrew Jackson and the later Democratic Party. The United States has had a two-party political system nearly because of allure inceptions. Shortly afterward the country with its own government was organized, Alexander Hamilton's Federalist Party and Thomas Jefferson's Democratic-Republican Party grew as the only two important governmental groups.

To know more about First Party System refer to: brainly.com/question/11468082

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nations around the world relying on one another for resources, goods, and services.

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3 years ago
Andrew went in his backyard at night, in the dark, to bring some firewood in the house. He heard the sharp crack of a twig break
umka2103 [35]

Answer:    B. Cannon-Bard

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