Edith must read for a minimum of 20 minutes.
1 answer:
Answer:
The required inequality is: or
The graph is shown in figure.
Step-by-step explanation:
Consider the provided information.
Edith must read for a minimum of 20 minutes.
Let the number of minutes is represented by x.
Edith must read minimum of 20 minutes that the value of x can be 20 or greater than it.
Thus, the required inequality is:
or
Now draw the graph of the inequality.
Use a dot or close circle to represents ≤ or ≥.
The value of E is greater than or equal to 20 and the required graph is shown in figure.
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(a)
The sample space is a set whose elements are all the possible outcomes for the experiment. Since we will extract one of the months of the years, the sample space is the set composed by all the 12 months:
(b)
An event is a subset of the sample space. Events are often defined by their properties. In this example, the event E is the subset of the sample space defined as
So, we have
(c)
If all outcomes have equal probability, then the probability of an event is the ratio bewteen its cardinality, and the cardinality of the whole sample space:
In words, since there are three months beginning with J out of 12 months, we have a probability of 3 over 12 to pick a month starting with J, which simplifies to 1 over 4.