Written Assignment 3 - Gabriel A. Godart

Written Assignment 3 - Gabriel A. Godart - Principles of...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Principles of Statistics 2010-04-STA-201-009OL Written Assignment 3 Gabriel A. Godart Thomas Edison State College. Exercises Set 4.1 Exercise 4.14 a. Let E = the event that the murder victim was between 40 and 44 years old, inclusive. f=1152 and N = 10810 P(E) = 1152/10810 = 0.106 b. Let E = the event that the murder victim was at least 25 years old. f=8000 P(E) = 8000/10810 = 0.74 c. Let E = the event that the murder victim was between 45 and 59 years old. f=1798 P(E) = 1798/10810 = 0.166 d. Let E = the event that the murder victim was under 30 years old or over 54 years old. f=5247 P(E) = 5247/10810 = 0.485 Exercise 4.20 a. Let E = the event that two of the three tosses come up heads.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
N=8 and f=4 So P(E) = 4/8 = 0.5 b. Let E = the event that the last two tosses come up heads. f=2 So P(E) = 2/8 = 0.25 c. Let E = the event that all three tosses come up the same. f=2 So P(E) = 2/8 = 0.25 d. Let E = the event that the second toss comes up heads. f=4 So P(E) = 4/8 = 0.5 Exercises Set 4.2 Exercise 4.36 A: HHHH, HTHH, THHH, TTHH, HHHT, HTHT, THHT, HHTH, HTTH, THTH, HHTT. B: TTHH, TTHT, TTTH, TTTT C: HHHH, HHHT, HHTH, HHTT, HTHH, HTHT, HTTH, HTTT D: HHHH, TTTT Exercise 4.46 a. (not D) is the event that the respondents would not contribute . There are 85 outcomes. b. (A&B) is the event that the respondents would contribute at least $101 and not more than $50. There are 85+116+29+5+7+3 = 245 outcomes. c. (C or A) is the event that the respondents would contribute between $1 and $200 or at least $101. There are 116+59+29+5+7+3 = 219 outcomes. d. (B&D) is the event that the respondents would not contribute more than $50 and at least $1. There are 116 outcomes.
Background image of page 2
Exercises Set 4.3 Exercise 4.58 We have P(A) = 0.318, P(B) = 0.244, P(C) = 0.34 and P(D) = 0.098 a. The probability that the household obtained has an income under $75000 is
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 12

Written Assignment 3 - Gabriel A. Godart - Principles of...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online