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MatroZZZ [7]
3 years ago
9

In a normal distribution, what percentage of the data falls within 3 standard deviations of the mean?

Mathematics
1 answer:
Stells [14]3 years ago
4 0
99% using the 68- 95- 99 rule
For these kind of problems, it is always a good idea to just draw out a normal distribution curve.
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You can talk on the phone y minutes on day x of month according to the equation y=2x+1 the cell phone company clams you talked 1
ValentinkaMS [17]

Answer: They are wrong

       

Step-by-step explanation: x is given a value in the problem. Since x equals 4,  We plug x into the equation.  

y = 2(4) + 1

Y is actually equal to 9 minutes, not twelve.

4 0
3 years ago
If 5=3+2,then 3+2=5. What is the truth value
olga nikolaevna [1]

Answer:

true

Step-by-step explanation:

6 0
3 years ago
Principal = $2,400<br> Rate = 4%<br> Time = 30 months
grandymaker [24]

Answer:

$240

Step-by-step explanation:

I = prt

I = (2,400) (0.04) (2.5)  

note: I changed 4% to a decimal and 30 months to 2.5 years

I = 96 (2.5)

I = 240   <-- The interest

------------------------------------------------------------------------------------------------------------

The simple interest accumulated on a principal of $ 2,400.00  at a rate of 4% per year for 2.5 years (30 months) is $240.00.

---------------------------------------------------------------------------------------------------------

* Last time I did interest was in 6th grade and I don't remember much. So I am very sorry if my answer is wrong *

3 0
3 years ago
Which expression has the same value as 4÷25?
Hatshy [7]

Answer:

We need the choices, since there are plenty equations with the same value.

Step-by-step explanation:

4/25=0.16

Whichever equation equals 0.16 is your answer.

6 0
3 years ago
After studying the diagram shown, Michael makes the following conclusions:
inn [45]

Answer:

Therefore, Michael concludes option C)

C)(DA)^{2}=(DG)^{2}+(AG)^{2}

Step-by-step explanation:

Given:

1. DG = 3 and the area of square DEFG is 9.

2. AG = 4 and the area of square GHIA is 16.

3. DA = 5 and the area of square ABCD is 25.

So we have,

(DG)^{2}=3^{2}=9\\ \\(AG)^{2}=4^{2}=16\\\\(DA)^{2}=5^{2}=25\\

Now Add DG² and AG² we get

(DG)^{2}+(AG)^{2}=9+16=25=(DA)^{2}

Which is also called as  Pythagoras theorem i.e

(\textrm{Hypotenuse})^{2} = (\textrm{Shorter leg})^{2}+(\textrm{Longer leg})^{2}

Therefore, Michael concludes option C)

C)(DA)^{2}=(DG)^{2}+(AG)^{2}

3 0
3 years ago
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