The average annual salary for 35 of a company’s 1200 accountants is $57,000. this describes a parameter.

Yes it describes only a parameter because a numerical characteristic of a population, as distinct from a statistic of a sample was use. only 35 out of the 1200 accountants salary was used in calculating an average salary. it will be real if use all the number of accountant in calculating the average salary

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.

Value is 6 i think k