The probability of the union of two events cannot be less than the probability of their intersection

A function of a property manager is the supervision of normal maintenance and repair to the property. Which of the following acts would most likely would require additional approval of the owner?

A. Scheduling regular painting. B. Repair of the broken window. C. Renovation of tenant's unit D. Fix a broken air-conditioner

Which statement is not true concerning the t distribution?

A) Compared to the normal distribution, the t distribution has more area in the tails and less in the center. B) As the number of degrees of freedom increases, the t distribution approaches the normal distribution. C) The t distributions are skewed to the left. D) The population variance is unknown and is estimated by the sample variance s2.