Answer:

Step-by-step explanation:
The sample space for the experiment is:

- Number of elements in S, n(S)=12
Given an event E such that:

- Number of elements in E, n(E)=8
The outcomes in the complement of E are the outcomes in S that are not in E.

- Number of elements in the complement of E,

Therefore:

It is the arabic system of numbers. The Roman was the one with Xes and Vs and Is and many other types of markings. Arabs used the 1-9 system, while 0 was taken from the hindu system as it indicates an empty space, so we got the 0-9 system that is commonly used now.
Answer:
Plotting the points on graph and joining them gives a right angle triangle
Answer:choices?
Step-by-step explanation:
The Venn diagram is given below. Then the number of students who have brother and sister will be 6.
<h3>What are sets?</h3>
A set is a group of clearly specified components. The number of items in a finite set is denoted by a curly bracket.
In a class of 20 students:
11 have a brother, 9 have a sister, and 6 have neither.
Then the Venn diagram will be
11 – a + a + 9 – a = 20 – 6
20 – a = 14
a = 6
The Venn diagram is given below.
More about the sets link is given below.
brainly.com/question/8053622
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