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In a grouped frequency distribution, the interval size refers to

Sally’s dog just received second place in obedience class. This is considered a ________scale of measurement.

A relative frequency is:

A table that lists scores on a variable and shows the number of occurrences of each score is called a _______ distribution.

Dr. Johnson hypothesizes that NutraSweet reduces short-term memory. In order to test her hypothesis she gives 10 subjects a beverage containing NutraSweet (treatment group) and 10 subjects a beverage without NutraSweet (control group). She then measures the subject’s ability to recall a list of numbers. What is the independent variable?

Round the following value to four decimal places: 3.45599

Based on the box-plot depicted in the picture, what is the approximate value of the maximum score?

When a relative frequency is multiplied by 100, it reflects the _____ of times the score occurred.

What is the critical chi-square value for the ice cream preference problem at alpha .05? **Report your answer to 2 decimal places.

The relative frequencies in a distribution will always sum to: