need someone to take over a stats class

Introduction to Data Analytics

Problem Set #1

Name:__________________________________________

Complete the following questions. You must show your work to receive full credit.

1. 6 + (-3) – (-4) 7 2. -3 (-4 + (-1))

6+ -3- -4

6+1=7

3. 1.5 (7 / (-2 / 3)) + (-3) (5) 4. 4 + (3 – 5)

5. 4! 24 6. 5! / 6!

7. 6! / (6 – 3)! 8. (5!) (4!) / 3!

9. 6 x 5! 10. (3 x 2)2 + 3 (2)2

For the following questions, assume X1 = 2, X2 = 5, X3 = 11, X4 = 12, and Y = 3. Please keep in mind that there are four X’s and one Y. So, when asked to calculate the Summation of X as you see in question #11, you actually need to sum all four X’s. This is also true in problems #12 through #20. My advice is to make sure you set the equation up correctly. I have completed this task for questions #11 and #12. Once the equation is set up correctly, the calculations are rather basic.

11. X 12. YX

2+5+11+12= (3x2)+(3x5)+(3x11)+(3x12)=

13. YX 14. X2

15. YX2 16. (Y2X)2

17. Y(YX)2 18. (YX)2

19. X3 20. Y(X2 + 10)