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ruslelena [56]
3 years ago
6

State whether the quantity described is a parameter or a statistic and give the correct notation. Average household income for a

ll houses in the US, using data from the US Census.State whether the quantity described is ________a) parameter or b) statistic.
Mathematics
1 answer:
kogti [31]3 years ago
4 0

Answer:

b) statistic.

Step-by-step explanation:

In applied statistical work we rarely have the opportunity to measure entire populations, instead we make inferences about the populations from samples drawn, ideally randomly from the population. We usually want to know averages from whole populations, but use the average from a sample as our best guess at the population average. The unknown population average is called a parameter. The known sample average is called a statistic.

As a matter of convention, most statistical texts use greek symbols for population parameters and the English or Arabic letters for sample statistics. For example, a sample mean is often denoted as x-bar . Population means are denoted with the lower-case greek letter mu μ .

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Answer:

(C) 18cm, 39cm, 21cm and 45cm.

Step-by-step explanation:

The quadrilateral HIJK has sides measuring 12 cm, 26 cm, 14 cm, and 30 cm.

When HIJK is dilated with a scale factor of 1.5, the side lengths becomes:

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A dilation of HIJK with a scale factor of 1.5 will give us the side lengths:

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<u>The correct option is C.</u>

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Answer:

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Step-by-step explanation:

Given that:

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