Answer:
1. 60%
2. 70
3. 8%
Step-by-step explanation:
I attached pictures to show my work (sorry if they’re a bit messy)!
Mary<span> is 2x = 2*12 = </span>24 years old<span>.</span>
Answer: (3,4)
Each input can only have one output for a function
The other pairs give a different output for the input so that would make it a relation not a function.
Answer:
The correct answer is "$159 and $175".
Step-by-step explanation:
The give values are:
Mean,
= $167
Standard deviation,
= $40
Number of commuters,
n = 100
Now,
⇒ 
On putting the given values, we get
⇒ 
⇒ 
⇒ 
By using the 2 SE rule of thumb, we get
= 
= 
=
($)
Or,
= 
= 
=
($)
i.e,
$159 and $175