A jar contains 1 red marble, 1 yellow marble, 1 green marble, and 1 blue marble. You pick one marble out of the jar, then put it back into the jar and pick another marble out of the jar. What is probability of selecting a red marble and a NOT blue marble in the experiment

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.

Fast! find the length of cu. the triangles are similar. show your work.

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