All points of the step function f(x) are graphed.
2 answers:
Answer:
First option is correct.
Step-by-step explanation:
Domain is the set of x values for which the function is defined.
Hence, in order to find the domain, we see at which x values the graph originates and at which value of x the graph terminates.
The piece wise function is graphed between the values -4 and 4.
There is a hole at x = -4 hence, we'll not include this point in domain.
There is a solid circle at x = 4 hence, we'll include this point in domain.
Therefore, the domain of f(x) is
First option is correct.
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Answer:
There is a 95% probability that the portfolio would not loose more than 30% of its value.
Step-by-step explanation:
The confidence interval for proportions (<em>p</em>) is:
The information provided is:
For 95% confidence level the critical value of <em>z</em> is:
The 95% confidence interval for average annual return is:
The lower limit of the 95% confidence interval is -28%.
This implies that the portfolio would not loose more than 28% of its value.
Thus, there is a 95% probability that the portfolio would not loose more than 30% of its value.