If 30, x, x, 30 are in proportion, then the value of x is _
Answers
Step-by-step explanation:
2.1 Some Fundamental Concepts
One of the most basic concepts in probability (and statistics) is that of a random experiment. Although a more precise definition is possible, we will restrict ourselves here to understanding a random experiment as a procedure that is carried out under a certain set of conditions; it can be repeated any number of times under the same set of conditions; and upon the completion of the procedure, certain results are observed. The results obtained are denoted by s and are called sample points. The set of all possible sample points is denoted by S and is called a sample space. Subsets of S are called events and are denoted by capital letters A,B,C, etc. An event consisting of one sample point only, {s}, is called a simple event, and composite otherwise. An event A occurs (or happens) if the outcome of the random experiment (that is, the sample point s) belongs in A,s∈A; A does not occur (or does not happen) if s∉A. The event S always occurs and is called the sure or certain event. On the other hand, the event ∅ never happens and is called the impossible event. Of course,
Step-by-step explanation:
30/x*x/30
2x=30*30
2x=900
x=900/2
= 450
second term = 225
third term = 225 ans