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A researcher stands outside a grocery store and surveys the first 50 people who walk by. What type of sampling method is this?

Which of the following are required conditions for a binomial distribution (the BINS checklist)? Select all that apply.

Arrange the following steps in the correct order to identify outliers using the IQR method.

A five-number summary for a dataset is: Min = 10, Q1 = 25, Median = 40, Q3 = 55, Max = 90. What is the Interquartile Range (IQR)?

Upload a photo of a hand-drawn boxplot for the following dataset: 12, 15, 18, 22, 25, 28, 30, 35, 42, 65. Your boxplot must clearly show the five-number summary values (minimum, Q1, median, Q3, maximum) and identify any outliers with an asterisk (*). Label each value on your drawing.

Using the Empirical Rule, if data is bell-shaped with a mean of 100 and a standard deviation of 15, approximately what percentage of values fall between 70 and 130?

A graph designer starts the y-axis of a bar chart at 50 instead of 0. What effect does this have?

A student scored 78 on an exam where the class mean was 70 and the standard deviation was 8. What is this student’s z-score?

A dataset of employee salaries has a mean of $52{,}000 and a median of $45{,}000. What does this suggest about the shape of the distribution?

True or False: A parameter is a numerical measurement that describes a characteristic of a sample.