In a t test for two independent samples, the unbiased estimate of the population variance is:

If RT = 470 Kê, R1 = 39 Kê, and R2 = 220 K, what is the value of R3?

a. 30 K
b. 211 K
c. 250 K
d. 409 K
e. 729 K

The wages of the employees of a company are presented in this histogram. Answer the question.How many employees earn at least $4 and less than $6 an hour?

A. 10 B. 20 C. 34 D. 22

Graph the linear equation.8x + y = 0

A.

B.

C.

D.

Rewrite the exponential equation in logarithmic form.