Here is the histogram of a data distribution. All class widths are 1. Which of the following numbers is closest to the mean of this distribution? A. 3 B. 10 C. 6 D. 5 E. 4

If value of cos330° is √3/2 then find tan165°.

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec