Probability
Write an integer to represent a loss of $150
-150
4x + 9 = 33
x = 6
On the Probability Number Line, this is the name given to an event that is going to happen no matter what.
Jason rolled a die twenty times. He landed on 2 five times, 3 seven times, 6 two times, and 5 six times. What is the experimental probability of landing on 6?
1/10, 0.1, or 10%
-7 - 4 - (-6)
-5
2(x + 5) = 14
x = 2
If you roll a die once, the likelihood of rolling a number greater than 5 would be "unlikely." True or False?
true
-23 + 7
-16
3a + 12 - 6a = -9
a = 7
If you spin a spinner once that has 8 sections and roll a die one time, how many possible outcomes are there? (Counting Principle)
48
-56 ÷ -7
8
7(4 - t) = -84
t = 16
At the skating rink, 9 of the last 15 customers have rented skates. Based on that data, how many of the next 60 customers would you expect to rent skates?
36
Hasaan has a spinner with 5 equal sections, each a different color. After only 10 spins, the pointer had landed on red 40% of the time. After a whopping 1,000 spins, the pointer landed on red only 22% of the time. How can Hasaan account for this change in experimental probability?
As the number of trials increase, the experimental probability reaches closer to the theoretical probability. (The Law of Large Numbers)
-12 ÷ -6( 2)
4
WRITE AN EQUATION & SOLVE: Julie is 3 years older than her sister. Julie's age is 11 years old. How old is her sister?
n - Julie's sister's age n + 3 = 11 n = 8 Julie's sister is 8 years old.
A spinner, with 10 equal sections, is spun once. What is the probability of spinning a multiple of 4? Write your answer as a decimal.
.2