Determine length of ramp has the angle of elevation
The length of distance from ground to bottom of the window is 8 feet. The ramp from ground to bottom of window has the angle of elevation of 30°. Determine length of the ramp (in feet)?
A. 16 ft.
B. 4 ft.
C. 43 ft.
D. 83 ft.
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How do you calculate the standard deviation in a paired sample t test? If the sd for group one is 6.04 and the sd for group 2 is 6.47 what is the formula for calculating the standard deviation to use in the paired sample t test?
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