Answer:
Kindly check explanation
Step-by-step explanation:
Given the following :
True mean(μ) = 77.9
True standard = 20
Sample size (n) = 50
Sample mean (m) = 82.1
Sample standard deviation (s) = 18.6
The standard error (SE) :
SE = sample standard deviation / √sample size
SE = 18.6 / √50
SE = 2.6304372
SE = 2.63
-15/20 = -0.75
-2/3 = -0.67
9/-12 = -0.75
-12/16 = -0.75
-25/30 = -0.83
Therefore B and C are our answers.
9514 1404 393
Answer:
1/12 yard = 3 inches
Step-by-step explanation:
Each friend gets 1/3 of the ribbon, so ...
1/3(1/4 yd) = 1/12 yd
In inches, that is ...
(1/12 yd)×(36 in/yd) = 3 in
Each friend gets 1/12 yard, or 3 inches.
Answer:
There are infinite answers to your question
y= 5x + 1
is one of them
Step-by-step explanation:
Answer:
There are 30 students in the class
Step-by-step explanation:
we can write a ratio as:
8:10 as 24:x
Writing this as an equation gives:
8
10
=
24
x
We can now solve for
x
while keeping the equation balanced:
10
x
×
8
10
=
10
x
×
24
x
10
x
×
8
10
=
10
x
×
24
x
x
×
8
=
10
×
24
8
x
=
240
8
x
8
=
240
8
8
x
8
=
30
x = 30