Why do correlation coefficients greater than 0.50 rarely occur in the social sciences? It is difficult to construct a measure of behavior, e.g., depression or compassion, that adequately describes the complete range of that behavior of interest. Social scientists have not yet discovered the variables that are the best predictors of human behavior. Social scientists fail to construct experiments carefully enough to detect larger correlations. Human behavior is the product of many interacting variables; any single variable will be limited in its association with a behavior.

e) In order to get a better idea of how a given data point relates to other data, it is important to get an idea of how spread out the data are. One way of doing this is by using the range. The range is the distance between the highest and lowest data points in a set. What is the 'range' of the scores for this test?

09) O Desvio Padrão de um conjunto de dados é 9. A variância é: \( \begin{array}{llll}\text { 10) } \\ \begin{array}{lll}\text { a) ( ) } 3 & \text { c) ( ) } 81 & \text { b) ( ) } 36\end{array}\end{array} \)

\( \left. \begin{array} { l } { 5,5,8,3,12,10,18,15,12,16,20,18,20,20,24,26,25,28,25,30 } \\ { \qquad \overline { x } = 17.15 } \end{array} \right. \)

11) Na distribuição de valores iguais, o Desvio padrão é: 12) \( \begin{array}{llll}\text { a) ( ) negativo } & \text { c) ( ) zero } & \text { b) ( ) a unidade } & \text { d) ( ) positivo }\end{array} \)

A national food brand wants to launch a new chip flavor. They run a test study and offer 3 new flavors in select stores around the country.What's the best measure for determining which flavor to launch?Total revenue before and after offering the new flavorsSocial media surveysSales data and frequency of repeat purchases for the new flavorsDiscussions with customers in the stores offering the new flavorsTotal sales for stores offering the new chips against those that are not