Part 7:Statistics 19. Find the mean (average) of the following numbers: 72,80,88,90,70 Answer: __

When using the Kruskal -Wallis H test, it is important to remember: If the shape on the graph is the same, you can use the test to compare.the medians of your dependent variables. The utilization of graphs assists with distributions in each group having the same shape. Is less sensitive to outliers. All of the above

18. A number cube $(1-6)$ is rolled. What is the probability of rolling an even number? Answer: __

Factor the polynomial below. $36x^{2}-25$ Cannot be factored $(6x+5)(5x-6)$ $(6x-5)^{2}$ $(6x+5)(6x-5)$

$3x(6x^{2}-4xy^{2})+8x^{2}y^{2}-2y^{3}$

15. A rectangle has a length of 14 m and a width of 9 m. What is the perimeter? Answer: __

The sum of three consecutive numbers is 309 . What is the smallest of the three numbers?

Identify the focus of each. 31) $y-6=(x-4)^{2}$ 32) $\frac {1}{2}(x+2)=(y+9)^{2}$ 33) $x^{2}+4x+4y+4=0$ 34) $2x^{2}-24x+y+70=0$

Which is the product $(3x-5)(3x+5)$ in general form? $9x^{2}+25$ $9x^{2}-25$ $9x^{2}+15x-25$ $9x^{2}-15x-25$

Find the value of the expression $(t^{3}\div 4+s)\div 7$ for $s=19$ and $t=2$ $\square $

How would you write this expression using the values for a and b? $9(18)\div 10$ $9+18\div 10$ $10(18)\div 9$ $10+18\div 9$