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A shipment of 50 radios contains 2 that are defective. What is the probability that 2 radios picked at random and without replacement from the shipment will both be defective?
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What is the units digit of the product $$(11^{10})(12^5)(13^3)(15)$$?
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A social scientist conducted two experiments, experiment I and experiment II, in which the values 0, 1, 2, 3. and 4 were observed with the frequencies shown in the table above. Which of the following statistics are the same for the distribution of values observed in experiment I as they are for the distribution of values observed in experiment II?
Indicate all such statistics.
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Each of Rachelle' s clients is a resident of one of four cities-$$R, S, T$$, or $$W$$. Of these clients, 20 percent are residents of City $$R$$, 25 percent are residents of City $$S$$, and $$x$$ percent are residents of City $$T$$. Which of the following expressions represent, for all possible values of $$x$$, the number of Rachelle's clients who are residents of City $$W$$ as a fraction of all her clients?
Indicate all such expressions.
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In the figure above, $$AB$$, $$CD$$, and EF are circular arcs of radius 2, centered at the vertices of the triangle. What is the sum of the lengths of the three arcs?
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