Page 223 - Algebra 1

Lesson Practice
Identify each set of events as independent or dependent.
a. A card is chosen from a deck of cards, replaced, and then a second card
(Ex 1) is chosen.
b. A marble is drawn from a bag, kept, and then a second marble is drawn.
(Ex 1)
c.
(Ex 1)
d.
(Ex 1)
e.
(Ex 2)
A coin is flipped, and a number cube is rolled.
A spinner is spun and the result is recorded. Then the spinner is spun a second time.
A coin is flipped and a six-sided number cube is tossed. Make a tree diagram showing all possible outcomes. What is the probability of landing on tails and on an even number?
A bag contains 4 red blocks and 3 blue blocks.
(Ex 3)
f. Find the probability of drawing a red block, keeping it, and then drawing another red block.
g. Find the probability of drawing a blue block, keeping it, and then drawing a red block.
Use the spinner to answer the problems.
(Ex 4)
h. What are the odds of spinning black?
i. What are the odds against spinning gray?
Campers select one inside activity and one outside activity daily. There are 5 inside activities and 8 outside activities.
(Ex 5)
j. What is the probability of choosing pottery and horseback riding on the first day?
k. Inside activities can be repeated, but outside activities cannot be repeated. What is the probability of choosing pottery and swimming the second day?
Caution
The outside events are dependent, so the total number of outcomes changes.
Practice
Distributed and Integrated
Solve.
1. -5v = 6v + 5 - v
(28)
3. -22 = -p - 12 (26)
5. _2 = _30 (31) x -6
Simplify.
2. -3(b + 9) = -6 (26)
y6x5 w-5z-3 4x2z0 ___
7. 5 7 *8. -3 2 9. 3 (32) y x (32) w z (32) 2x z
208 Saxon Algebra 1
4. -_2 = -_1m + _3
(26) _5
x-4 (31) 6
3_ x+2
12
5
6.
=