What Is An Example Of A Discrete Variable
Number of students present. You could also count the amount of money in everyone s bank accounts.
Types Of Variables
A type of variable also called a categorical or nominal variable which has a finite number of possible values that do not have an inherent order.
What is an example of a discrete variable. A discrete variable is a variable whose value is obtained by counting. In this case the score given by each taster for each of the products is a discrete variable. For example you can count the change in your pocket.
For example a coin toss can either be a heads or tails. For example the roll of a die. Some examples of discrete variables.
Number of heads when flipping three coins. You can count the money in your bank account. The number of ice cream servings that james should put in his cart is an example of a discrete random variable because there are only certain values that are possible 120 130 140 etc so this.
Discrete random variables are variables that are a result of a random event. Discrete random variables are represented by the letter x and have a probability distribution p x. If you flipped a coin two times and counted the number of tails that s a discrete random variable.
For example hair color would be a discrete variable because it can only have a limited number of values such as red brown and black that does not occur in any particular order. Discrete variables are numeric variables that have a countable number of values between any two values. There are also simpler cases of statistics that involve discrete variables for study.
A continuous variable is a variable whose value is obtained by measuring. Determining the number of defects in a batch of 50 items. A discrete variable is always numeric.
Or the number of accidents at a certain intersection over one year s time possible values are 0 1 2. Height of students in class weight of students in class. Discrete variables are countable in a finite amount of time.
Students grade level. Number of red marbles in a jar. Counting the number of people who arrive at a store during a five minute period.
Discrete random variables typically represent counts for example the number of people who voted yes for a smoking ban out of a random sample of 100 people possible values are 0 1 2. For example the number of customer complaints or the number of flaws or defects. Randomly selecting 25 people who consume soft drinks and determining how many people prefer diet soft drinks.
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