Investigative Tasks in AP Statistics

The session focuses on the AP Statistics investigative task, offering strategies to improve scores. It covers logistical details, common questions, and provides examples from past exams (2009 and 2019) to illustrate the application of strategies. The session aims to build confidence and understanding of the task, emphasizing the importance of not panicking and leveraging known content.

What is the main focus of the AP Statistics session discussed in the video?

• Probability theory

• Data collection methods

• Investigative task on the AP exam

• Multiple choice strategies

Which resource is mentioned as being available for students to help with the session?

• A textbook

• A video tutorial

• An online quiz

• A session handout

What is the key difference between a binomial and a geometric random variable?

• Binomial and geometric both count trials until first success

• Binomial and geometric both count successes in fixed trials

• Binomial counts trials until first success; geometric counts successes in fixed trials

• Binomial counts successes in fixed trials; geometric counts trials until first success

What is one of the strategies suggested for tackling the investigative task?

• Focus only on the last part of the task

• Use only textbook examples

• Ignore the task if it's too difficult

• Remain calm and get the easy points

In the sample investigative task, what is the parameter of interest?

• The variance of the sample data

• The median miles per gallon for the sample

• The true mean miles per gallon for the car model

• The sample mean of fuel efficiency

What does a p-value of 0.14 indicate in the context of a significance test?

• The null hypothesis is rejected at a 14% significance level.

• There is a 14% chance of observing a result as extreme as the sample result, assuming the null hypothesis is true.

• There is a 14% chance that the null hypothesis is true.

• The sample mean is 14% greater than the sample median.

In a box plot, what does it suggest if the right whisker is longer than the left?

• The distribution is skewed to the left.

• The distribution has no outliers.

• The distribution is symmetric.

• The distribution is skewed to the right.

Why might the median be a better measure of central tendency than the mean in a skewed distribution?

• The median is less affected by extreme values or outliers.

• The median is easier to calculate.

• The mean is always more accurate.

• The median is always larger than the mean.

What is bootstrapping in the context of statistical analysis?

• A method to increase sample size by adding more data.

• A technique to estimate the sampling distribution by resampling with replacement.

• A way to calculate the mean of a dataset.

• A process to eliminate outliers from a dataset.

What is the primary goal of an investigative task in AP Statistics?

• To apply statistical concepts to new and unfamiliar problems.

• To memorize statistical formulas.

• To focus solely on data collection methods.

• To solve only theoretical problems.