What is the probability that a data value in a normal distribution is between a z-score of -1.98 and a z-score of 1.11 Round your answer to the nearest
tenth of a percent.
A. 55.3%
B. 46.2%
C. 65.0%
D. 84.3%

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is