8.7 Probability Day 1
Experiment
Sample Space
Ex 1: Find the sample space for each of the following.
a. One coin is tossed.
b. Two coins are tossed.
c. Three coins are tossed.
Probability
Ex 2: a. Two coins are tossed. What is the probability that both
Name: Class: Date: ID: A
8 8 quiz Review Name
Multiple Choice
Identiz the choice that best completes the statement or answers the question.
1. Write the rst ve terms of the sequence. (Assume that n begins with 1.)
a = 7n + 8
a 1,9,17,25,33
b. 1, 6,
Warm-Up 4-22-14
1. If the first term of a geometric sequence is 3 and the fourth term is 81, what
are the common ratio and the terms in between?
3, _, _, 81
2. If the first term of a geometric sequence is 1 and the 13th term is 4096, what
are the common r
8.7 Day 2 Notes
Random Selection
See Ex 6 on p.652
Mutually Exclusive
Probability of the Union of 2 Events
Ex 1: One card is selected from a standard deck of 52 playing cards. What is the probability that the
card is either a heart or a face card?
Ex2: Ye
Int Alg Ch 8 Formula Sheet
n
1)1+2+3+4+nor
k=
n(n 1)
2
k2
=
k 1
n
2) 12 + 22 + 32 +n2 or
k 1
n
3) 13 + 23 + 33 +.+n3 or
k3 =
k 1
4) 14 + 24 + 34 +.+n4 or
n
k4
=
k 1
n
5) 15 + 25 + 35 +.+n5 or
k5 =
k 1
n(n 1)(2n 1)
6
n 2 (n 1) 2
4
n(n 1)(2n 1)(3n 2
30
n 2
Int Alg Probability:
Probability = # of successful outcomes
# of possible outcomes
And = Mult Or = Add
* note: you cant count a successful outcome more than once Ex) The probability
of drawing a spade or a 4 is 16/52. You cant count the 4 of spades twice.
Int Alg:
Practice Probability WS #2
1) How many positive numbers less than 10,000 are evenly divisible by 5?
2) How many 3 digit numbers can be formed with 1, 2, 3, 4, and 5 without repeating?
3) Find 8P2.
4) Find 15P5.
5) Two dice are rolled, what is the
Int Alg:
ProbabilityWorksheet #3
1) How many license plates can be made using 2 letters, then 2 numbers, then either 2
letters or 2 numbers?
2) In how many ways can 7 hats be used to cover the heads of 3 store dummies?
3) How many different ways can you p