Find the standard deviation of the probability density function to the nearest hundredth.f(x) = 
- 
; [2, 6]
A. 0.94
B. 0.95
C. 0.93
D. 0.92
Answer: A
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Solve the problem.A power boat in still water maintains a speed of 20 miles per hour. The boat heads directly across a river perpendicular to the current which has a speed of 7 miles per hour. Find the actual speed and direction of the boat, rounded to the nearest whole number.
A. 20 miles per hour; 20° off course B. 21 miles per hour; 19° off course C. 12 miles per hour; 36° off course D. 11 miles per hour; 40° off course
Find the linear function that is the best fit for the given data. Round decimal values to the nearest hundredth, if necessary.
A. y = 6.8x - 150.7 B. y = 6.2x - 140.4 C. y = -6.8x + 150.7 D. y = -6.2x + 140.4
Provide an appropriate response.The refund fraction on a 24 month loan that is paid off with 4 months remaining is:
A. 
B. 
C. 
D. 
Solve the equation.-16 = -9x - 7
A. 8 B. 1 C. 0 D. 4