A fair coin is tossed 150 times. Find the probability of observing exactly 75 heads.
A. 0.067
B. 0.0067
C. 0.796
D. 0.0651
E. none of these
Answer: D
Mathematics
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Solve the equation on the interval 0 ? ? < 2?.tan(2?) - tan ? = 0
A. {0}
B. {0, ?}
C. 
D. 
Mathematics
Use the circle graph to solve the problem.The circle graph below gives the number of students in the residence halls at the state university.
Which residence hall has the third lowest number of students?
A. Carver B. Evans C. Dodge D. Brown
Mathematics
Graph the system of inequalities. Shade the region that represents the solution set.
A. 
B. 
C. 
D. 
Mathematics
Solve by elimination.6x + 7y - 57 = 06x + 2y - 72 = 0
A. (-13, 7) B. (-13, 6) C. (-3, 13) D. (13, -3)
Mathematics