Question

Test: PRACTICE Final Submit Test This Question: 1 pt 7 of 25 This Test: 25 pts possible Year Expenditures (S bilions) The table shows the national expenditures for health care, in billions, in a country for selected years from 1995 with projections to 2020 Complete parts (a) through (c) below. 1995 2000 2005 2010 2015 2020 1013 1340 1976 2933 3283 4321 a. Find a linear function that models the data, with x equal to the number of years ater 1990 and y equal to the expenditures for health care in billions of dollars. (Use integers or decimals for any numbers in the equation. Round to three decimal places as needed.) b. What does this model predict the expenditure will be in 2011? Round to three decimal places as needed.) c. In what year does the model predict that the expenditures for health care will be $3344 billion? The year billions (Round to the nearest whole number as needed Enter your answer in each of the answer boxes 838 AM O Type here to search

Answer 1

Meay 1013 00 10 13u0 200S S 2010 20 2933 201S2S 200 30 し32 3283 Usin colcolatar 3 2470

レ. = ↓33.2914 'b=乩2;-aEx)= sug.accç

n 201 .b

Answer 2

The term ‘average’ occurs frequently in all sorts of everyday contexts. For example, you might say ‘I’m having an average day today’, meaning your day is neither particularly good nor bad, it is about normal. We may also refer to people, objects and other things as ‘average’.

The term 'average' refers to the ‘middle’ or ‘central’ point. When used in mathematics, the term refers to a number that is a typical representation of a group of numbers (or data set). Averages can be calculated in different ways - this page covers the mean, median and mode. We include an averages calculator, and an explanation and examples of each type of average.

The most widely used method of calculating an average is the ‘mean’. When the term ‘average’ is used in a mathematical sense, it usually refers to the mean, especially when no other information is given.

Read more at: https://www.skillsyouneed.com/num/averages.html