Answer:
(Incomplete question); usually the sum of the probabilities for all values of a random variable is 1.
Step-by-step explanation:
A random variable is a numerical valued variable on a defined sample space of an experiment with expressions such as X or Y.
A good example is a company that wants to analyse the number of calls received at its Help Desk from 8 am to 12 pm in a month. The number of calls from customers at the Help Desk during the defined time period (8 am - 12 pm) is the random variable.
Another example is when a coin is tossed twice; the sample space is either {HH, HT, TH, TT} by assigning numerical values to the random variable we may define the random variable X as the total number of tails (T), meaning X values becomes 0,1 and 2 .
The meaning of the equation x=1 is that the numerical value of variable X is; 1.
<h3>
What is the meaning of x=1?</h3>
It follows from the task content that the mathematical meaning of the equation x=1 be explained.
By virtue of the equality sign, it follows that the numerical value of variable x is 1 and hence, 1 can be substituted for variable x in any mathematical expression within the context of discuss.
Read more on equations;
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Answer:
Step-by-step explanation:
Unlike the range which describes all the y-values used by the graph, the domain describes the x-values used by the graph. The domain is basically describing how far left to right the graph goes.
What's tricky about this is to recognize that the graph goes on forever to both the left and the right. It never stops on either side.
In words, we'd say it goes from negative infinity to positive infinity.
As an inequality, we'd write this as Answer D.
Answer:
X would be equal to 5.
Step-by-step explanation:
20 divided by 16 equals 1.25.
1.25 times 4 equals to 5.