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a sock drawer contains winter socks and summer socks. both varieties come in two colors: red and blue. there are two pairs each of red summer socks and red winter socks, and one pair each of blue summer socks and blue winter socks. if a sock is selected randomly, what is the probability it will be a red sock or a winter sock?

What is the range of the data below? .8090100

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.