Answer:
700 teens
Step-by-step explanation:
If five out of 7 teens do homework every night
There are 980 teens
How many out of 980 teens would do homework every night?
Firstly divide 980 teens by 7
Which is 980/7=140
Next is,
Out of 7 teens, there are 5 who do homework every night
So, multiply 140 by 5
140×5=700 teens
This means, the reasonable prediction of teens who do homework every night out of 980 is 700 teens
Answer:
m (Slope) = 3
Step-by-step explanation:
Slope formula:
m = (y2 - y1) / (x2 - x1)
= (24 - 3) / (9 -2)
= 21 / 7
=3
Answer:
Step-by-step explanation:
Given given that
- Lower confidence interval = 7.1
- Upper confidence interval = 7.5
- As such, We are 95% confident that it's somewhere between 7.1 and 7.5 hours per night
Average value = LCI + UCI /2 = 7.1 + 7.5 / 2
= 7.3hours per night, so we are 95% confident that it's somewhere between 7.1 and 7.5 hours per night which is eventually 7.3hrs per night.
Answer:
19
Step-by-step explanation:
Remember to follow PEMDAS.
PEMDAS is the order of operations, and is:
Parenthesis
Exponents (& roots)
Multiplication
Division
Addition
Subtraction
First, divide 6 with 2: 6/2 = 3
Next, add: 16 + 3 = 19
19 is your value.
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