Choose the definition for the function. (x + 1 x < 2
a. y = (x + 2 x > 2
(x + 1 X> 2
c. y'=
1x + 2 X < 2
b. y
=
(x + 1 x <2
1x + 2 x > 2
d. y=
fx + 1 x > 2
(x + 2 x < 2

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