Use symmetry to graph the inverse of the function.
1 answer:
<h2>Answer:</h2>
a. is the correct option
<h2>Step-by-step explanation:</h2>The graph of a function and its inverse function
are related to each other. The relationship between these two graphs can be explained by taking a point
that is on the graph of
, then point
must lie on the graph
and vice versa meaning that the graph of
is a reflection of
in the line
. The only graph that meet this requirement is the option a. For instance, the point
is on the graph of
while the point
is on the graph of
as indicated below.
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Answer: 267.
Step-by-step explanation:
When there is no prior information for the population proportion, then the formula we use to find the sample size to estimate the confidence interval :
, where z* = Critical z-value and E + amrgin of error.
Let p = proportion of packages of ground beef sold at a particular store that have an actual fat content exceeding the fat content stated on the label.
Since , we have no prior information about p. so we use above formula
with E = 0.06 and critical value for 95% confidence =z* =1.96 [By z-table ] , we get
Hence, the required sample size is 267.