analyzing linear data

A data set can be represented by a linear model if the data points on the scatter plot _____. => lie in negative quadrants only or lie close to a straight line or form a smooth curve or lie in positive quadrants only..

Comparing center and spread: within group, between group variation Comparing clusters and gaps Comparing outliners and other unusual features Comparing shapes Exploring bivariate data: Analyzing patterns in scatterplots Correlation and linearity Least..

Find the minimum number of data pairs required to find a linear model for a data set. => 2 or 1 or 3 or None of the above..

Different forms of numbers Scientific notation, square roots, exponents, radicals, absolute value, factorial, logarithms Properties of numbers Estimation of solutions Sequences and series Proportionality/direct variation, exponential/fractional expressions Patterns, relations and functions ..

A medical researcher wishes to test the effects of two diets and the time of day on the sodium level in a person's blood. Twenty people are randomly selected, and five are randomly assigned to each of the four groups. Find F A × B and analyze the data shown in the tables h..

The number of women competing in a beauty contest from 1995 to 1999 is shown in the table. Is it reasonable to represent the data by a linear model? Which method can be used to estimate the number of women competing in the year 2000? => yes, linear extrapolation or yes..

Sam's annual income is as per the table. Write a linear model for the data. Let y represent the annual income and t the number of years since 1990. => y = 1000 t + 16000 or y = 16000 t or y = 16000 t + 2000 or y = 2000 t + 16000..

Which is a method of estimating the co-ordinates of a point that lie to the right or left of all of the given data points? => Linear extrapolation or Linear interpolation..

The table shows the expenditure (in hundred dollars) on sports by a city club. Choose a linear model for the data. Which method can be used to estimate the amount spent on sports in 1992? Year 1980 1985 1990 1995 2000 Amount ($) 48.4 52.5 57 61.2 65.6 => y = 0.484 t + 61.2, ..

The table shows the relationship between a waiter′s earnings and the number of hours he works overtime in a restaurant. Use the rate of change to identify a linear equation for the data shown in the table. Number of Hours ( x ) 1 2 3 4 Earnings (in $)( y ) 35 39 43 47 => y..