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 journalist takes a random sample of UF students and asks them how much they spend on the cell phone service per month.  Suppose that a journalist wants to create a graph of the responses for the college newspaper. What type of graph should she make?

Below is a table from the General Social Survey. In 1986, respondents were asked how much they agreed or disagreed with the following statement. “Welfare helps prevent hunger and starvation”.   Male Female Row Total Strongly Agree 96 132 228 Agree 455 615 1070 Disagree 58 78 136 Strongly Disagree 9 17 26 Total 618 842 1460   Given that the respondent strongly disagrees, what is the probability that the respondent is female?

Microsoft has a new online tool that tries to guess the age of the individual in the image. Students were to upload a photo of themselves and have the program determine their age (ToolAge) and then also enter their real age (True Age). A regression model was made to predict true age based on the tool age. This model uses information just from the men.  Predict the true age of a man if the age predicted by the Microsoft tool is 40.

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 the calories per serving for a selection of 5 brands of cereal found on the bottom shelf of a grocery store. Find the sample standard deviation.   Cereal Calories Cherrios 110 Bran Chex 90 Corn Chex 110 Corn Pops 110 Golden Crisps 100

The below stem and leaf plot states the tax markup for cigarettes (in cents).     What is the maximum markup?

Below is a table from the General Social Survey. In 1986, respondents were asked how much they agreed or disagreed with the following statement. “Welfare helps prevent hunger and starvation”.   Male Female Row Total Strongly Agree 96 132 228 Agree 455 615 1070 Disagree 58 78 136 Strongly Disagree 9 17 26 Total 618 842 1460   What is the probability that a female says that she agreed?

Suppose that you were rolling an seven sided die. The chance that the dice lands on any of its sides is 1/7. What is the chance that you get the same value(for example, a “3”)  four times in a row?

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?