Answer:
See explanation.
Step-by-step explanation:
We are looking at a geometric distribution.
The probability of selecting a brown peanut is .12 = p
The probability of not selecting a brown peanut is .88 = q
The probability mass function is p(y) = (.88)^(y-1) * (.12)
a) p(7) = (.88)^6 * .12 = .0557
b) p(7 <= y <= 8) = p(7) + p(8)
= .0557 + (.88)^7 * .12 = .1048
c) p(y <= 7) = p(0) + p(1) + ... + p(7)
= .12 + (.88)^1 * .12 + (.88)^2 * .12 + ... + (.88)^6 * .12 = .4713
d) The expect value is 1/p. So, 1/(.12) = 8.33 M&M's
The number of days to hatch over the number of days in a year: 73/365. Now simplify: you can't that's as simplified as it gets. So Your answer is 73/365 :)
Answer:

General Formulas and Concepts:
<u>Pre-Alg</u>
Step-by-step explanation:
<u>Step 1: Define equation</u>
rt - 2n = y
<u>Step 2: Solve for </u><em><u>t</u></em>
- Add 2n to both sides: rt = y + 2n
- Divide both sides by r: t = (y + 2n)/r
68,642 rounded to the nearest thousand is 69,000.
It's because 68,642 is closer to 69,000 than to 68,000.
I hope it will help you and give a clue for rounding numbers in the future ;)