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A regression line was found to predict Foreign direct investment (FDI) (net inflows (% of GDP)) based on year for Latin America & the Caribbean (IDA & IBRD countries) countries. The value of R-squared was 0.713. Interpret R-Squared (if applicable).

Below are the recovery times (in days) from a Hip Prosthesis for 5 females. Find the standard deviation.   22.4   15.9  29.5  29.1  12

In the Spring of 2017, a sample of 102 homes for sale in Gainesville was collected. The sale price and square footage of the homes were recorded.  The least squares regression equation was price = -58857+162.9*foot  For one house, the square footage was 1170 and the price was 137500 dollars. Find the residual. 

A regression line was found to predict Foreign direct investment (FDI) (net inflows (% of GDP)) based on year for Low & middle income countries. The value of R-squared was 0.84. Interpret R-Squared (if applicable).

A random number generator generates a number between 0 and 1. Assume that each number is equally likely between 0 and 1 – including decimals. What is the probability that a number is between 0 and 0.6?

A recent General Social Survey asked respondents how many close friends they had. For a sample of 1467 people, the mean was 7.4. The values go from 1 to 66. Assume that the data is normally distributed. Which of the following is a plausible value for the standard deviation?

The below stem and leaf plot states the sepal (a part of the flower – usually green) length (cm) of a sample of 150 irises.     What is the maximum sepal length?

Below are boxplots of the 40 second sprint times for the NFL combine in 2014 grouped by position (POS). Which of the following positions overall had the lowest median sprint time?  

Look at the below scatterplot and determine what would be a reasonable value for the correlation coefficient. C1 and C3 represent someone’s rating of two different television programs on a scale from 0 to 1.0.  

A regression line was found to predict Foreign direct investment (FDI) (net inflows (% of GDP)) based on year for the Middle East & North Africa. The value of R-squared was 0.427. Interpret R-Squared (if applicable).