20 points Which of the following statements shows a characteristic of a statistical question? (4 points)

Select one:

a. The question is focused.

b. There is a population that is being studied.

c. The distribution can be broken into categories.

d. The question allows for surveys to be conducted.

no links. links will be reported I need help due soon ASAP

Prove that quadrilateral is a rhombus.

D(5, 7). e(4,3), and f(8, 2) form the vertices of a triangle. what is mzdef? oa. 30° ob. 45° oc. 60° od 90°

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?