Suppose X is a normal random variable with
0.9987; 0.9901; 0.8164
Mathematics
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Find the limit.
cos 
A. 
B. 0
C. -1
D. 1
Mathematics
Solve the problem.The parabola y2 = -28x is shifted 7 units down and 4 units to the right. Find the focus and directrix of the new parabola.
A. Focus: (-7, -3); Directrix: y = 11 B. Focus: (11, -7); Directrix: x = 11 C. Focus: (-3, -7); Directrix: x = -3 D. Focus: (-3, -7); Directrix: x = 11
Mathematics
Use the principle of estimation to find an estimate for the calculation.192,561 ÷ 54
A. 4000 B. 40 C. 200 D. 2000
Mathematics
Provide an appropriate response.Explain why or when the median is a better average to use than the mean.
What will be an ideal response?
Mathematics