Answer:
True
Step-by-step explanation:
to be a function, each input can have only one output. For these points, each x has only one y, so it it a function. A relation, just describes x to y, so it is both
Answer:
(a)
Step-by-step explanation:
Given
See attachment for sets A and B
Required
The true statement about both sets
First, we calculate the typical values (mean) of set A and set B.
This is calculated as:

For A:



For B:



<em>Here, we can conclude that B has a larger typical value</em>
Next calculate the spread (range) of sets A and B
This is calculated as:

For A:


For B


<em>Here, we can conclude that A has a larger spread.</em>
<em></em>
<em>Hence, (a) is true</em>
The total number of elements is 2+2=4. Since we have 2 silver earrings, we get

the, the probability to get two silver earrings is 1/2, which is equivalent to 0.5.
The answer is A. The two should be the same