Term
| Arithmetic Mean? The arithmetic mean is determined by? |
|
Definition
The arithmetic mean is determined by dividing the sum of a set of values by the number of values in that set. Ex. let's say that there are 10 students in a class, and the students' test scores read as follows: 82, 84, 98, 94, 70, 75, 73, 98, 100, 76 To find the arithmetic mean of all students' scores add all of the scores together; the total is 850. Then divide this sum total by the number of test scores, which is 10. The arithmetic mean would therefore be 85. [image] |
|
|
Term
|
Definition
the midpoint of a set of values. Step 1. First, arrange the data from highest to lowest Step 2. Then locate the middle score, if the number of data points is even, locate the two middle scores and divide them by two. |
|
|
Term
| The mode measures the value of the data that? |
|
Definition
|
|
Term
| The range of the data is? |
|
Definition
| The highest value/number and subtract the lowest value/number |
|
|
Term
| Steps to do the standard deviation. |
|
Definition
- Find the mean.
- Subtract the every data point by the mean (D-M)
- Then square each one
- Next Add to get total
- Then divide by the number of observations.
- Finally figure out the positive square root of that number.
|
|
|
Term
|
Definition
| Number of times each data point occurs |
|
|
Term
| What is the formula for calculating the total number of possible outcomes? |
|
Definition
[image] Ex. In this formula, n stands for the total number of sodas and r represents the number of cans withdrawn. Therefore, n = 10 and r = 2. So, the number of possible combinations that would be pulled out of the cooler would be determined as follows:[image] Since you can eliminate from the numerator and denominator those multiples that are the same (8 x 7 x 6 x 5 x 4 x 3 x 2 x 1), the resulting equation is as follows: [image]
|
|
|
Term
| What is the formula for probability? |
|
Definition
For situations in which all possible outcomes are equally likely, the probability (P) that an event (E) occurs, represented by P(E), can be defined as follows:[image] |
|
|
