# High school statistics questions and answers

Recent questions in High school statistics

### Answer true or false to the following statements and explain your answers. a. In multiple linear regression, we can determine whether we are extrapolating in predicting the value of the response variable for a given set of predictor variable values by determining whether each predictor variable value falls in the range of observed values of that predictor. b. Irregularly shaped regions of the values of predictor variables are easy to detect with two-dimensional scatterplots of pairs of predictor variables, and thus it is easy to determine whether we are extrapolating when predicting the response variable.

Kyran Hudson 2020-10-27 Answered

### Suppose that strep throat affects 2% of the population and a test to detect it produces an accurate result 99% of the time. a. Create a two-way table for 10,000 people who were tested. b. What is the probability that someone who tests positive actually has strep throat?

Trent Carpenter 2020-10-26 Answered

### You can use a scatterplot to estimate a value between two known values. Estimate the world production of oil when the United States produced 12% of the world's oil. Draw a scatterplot. Find 12% on the vertical axis. More horizontally to the line of points. Estiamte where the new point would fit in the pattern. Then move down to the horizontal axis. Oil Production 1960-2000 (billion barrels) World Oil production: 45.9, 52.8, 59.9, 68.3, 72.5 U.S. Percent of world Oil Production: 21, 16, 13, 9, 7

Tobias Ali 2020-10-26 Answered

### Matching Here are several scatterplots. The calculated correlations are -0.923, -0.487, 0.006, and 0.777. Which is which?

Brittney Lord 2020-10-21 Answered

### Would you expect distributions of these variables to be uniform, unimodal, or bimodal? Symmetric or skewed? Explain why. a) Ages of people at a Little League game. b) Number of siblings of people in your class. c) Pulse rates of college-age males. d) Number of times each face of a die shows in 100 tosses.

Braxton Pugh 2020-10-21 Answered