Jose is flipping a coin, what is the probability that the coin lands on heads.
1/2 or .5 or 50%
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)
Find the mean of the data: 6 , 15 , 16 , 20 , 13 , 5 , 10 , 16
Define "theoretical probability."
It is the probability of what we expect to happen.
Jesus and Francisco are playing marbles. If there are 5 yellow marbles, 3 blue marbles, and 7 green marbles what is the probability of selecting a blue marble?
1/5 or .2 or 20%
What is the probability of selecting the color red?
1/6
Find the mean: ) 9 , 19 , 16 , 9 , 16 , 2 , 14 , 8 , 2
10.6
Define "experimental probability."
The probability of what actually happens.
What is the probability of rolling a 3 on a dice?
1/6
A letter tile is randomly selected from a bag, recorded, and replaced 100 times. The results are listed below. What is the experimental probability of selecting the letter "E"? A = 16 E = 11 I = 29 O = 19 U = 25
11/100 or 0.11, or 11%
Find the median: ) 9 , 19 , 16 , 9 , 16 , 2 , 14 , 8 , 2
9
The average of the data
The mean
Jesus and Francisco are playing marbles. If there are 5 yellow marbles, 3 blue marbles, and 7 green marbles what is the probability of selecting a red marble?
0
Pedro recorded the types of birds that visit his bird feeder. Based on the results below, what is the probability the next bird will be a chickadee? Woodpecker = 3 Chickadee = 5 Cardinal = 1 Sparrow = 13 Blue Jay = 3
1/5, or 0.20, or 20%
Find the range:17 , 17 , 11 , 10 , 1 , 20 , 17 , 17
19
The number in the middle of the data
The median
Jesus and Francisco are playing marbles. If there are 5 yellow marbles, 3 blue marbles, and 7 green marbles what is the probability of not selecting a yellow marble?
2/3
What is the probability of selecting a yellow and blue?
5/6
Find the interquartile range:
12 , 18 , 5 , 8 , 15 , 2 , 9 , 17 , 1
16-3.5= 12.5
The spread of the data
variability or range