Answer Sheet

STAT 200

Answer Sheet

Instructions:

Record your answers and work in this document.

Answer all 20 questions. Make sure your answers are as complete as possible. Show all of your work and reasoning. In particular, when there are calculations involved, you must show how you come up with your answers with critical work and/or necessary tables. Answers that come straight from calculators, programs or software packages without explanation will not be accepted. If you need to use technology to aid in your calculation, you have to cite the source and explain how you get the results. For example, state the Excel function along with the required parameters when using Excel; describe the detailed steps when using a hand-held calculator; or provide the URL and detailed steps when using an online calculator, and so on.

Show all supporting work and write all answers in the spaces allotted on the following pages. Please type your work using plain-text formatting or an equation editor. Show work neatly and correctly, following standard mathematical conventions. Each step should follow clearly and completely from the previous step. If necessary, you may attach extra pages.

Record your answers and work.

Problem Number Solution
1 Answer:

(a)

(b)

2 Answer:

(a)

(b)

3 Answer:

(a)

(b)

Justification for (a) and (b):

4 Answer:

(a)

(b)

5 Answer:

(a)

Season Rainfall (in Inches) Frequency Cumulative Relative Frequency
0 – 9.99 1
10 – 19.99 22
20 – 29.99 0.84
30 – 30.99 0.98
40 – 40.99 1.00
Total 50

(b)

(c)

Work for (a) and (b):

6 Answer:

(a)

(b)

Work for (a) and (b):

7 Answer:

(a)

(b)

Work for (a):

8 Answer:

(a)

(b)

Work for (a):

9 Answer:

(a)

(b)

Work for (a) and (b):

10 Answer:

(a) n = , p = , and q = .

(b)

Work for (b):

11 Answer:

(a)

(b)

Work for (a) and (b):

12 Answer:

(a)

(b)

Work for (a) and (b):

13 Answer:

(a)

(b)

(c)

(d)

(e)

(f)

Work for (c) and (d):

14 Answer:

(a)

(b)

Work for (a):

15 Answer:

(a)

(b)

Work for (a):

16 Answer:

(a)

(b)

(c)

(d)

(e)

(f)

(g)

Work for (d) and (e):

17 Answer:

(a)

(b)

18 Answer:

(a)

(b)

19 Answers:

(a)

(b)

(c)

(d)

(e)

(f)

Work for (c) and (d):

20 Answer:

(a)

(b)

(c)

(d)

Work for (a), (b) and (c):