Which of the following statements is true of a probability mass function but not a probability density function? A. The function takes on only non-negative values.
B. The probability that a random variable X is equal to a specific value x can be greater than zero.
C. The function sums to (or integrates to) one over its domain.
D. The probability that a random variable X is between a and b is the area under the function between a and b.

In djkl, side jk measures 10.6 inches, side kl measures 7 inches, and side jl measures 5 inches. based on the information that is provided, which could be a correct set of angle measures for these sides? angle j = 23.2°, angle k = 33.5°, angle l = 23.2° angle j = 23.2°, angle k = 33.5°, angle l = 123.2° angle j = 123.2°, angle k = 23.2°, angle l = 33.5° angle j = 33.5°, angle k = 23.2°, angle l = 123.2°

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship