Definition: This is the observed variable in an experiment or study whose changes are determined by the
presence or degree of one or more independent variables. When graphed, this variable is usually on the
vertical axis.

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.