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Elena L [17]
3 years ago
13

In a normal distribution what percent of values fall within one standard deviation of the mean?

Mathematics
2 answers:
dexar [7]3 years ago
8 0
Roughly 68% of the distribution is between z = -1 and z = +1, ie within 1 standard deviation of the mean. This is from the 68-95-99.7 rule or better known as the Empirical Rule. 

The final answer is choice D) 68.2%
Ivenika [448]3 years ago
5 0

if a normal distribution, what percentage of the data falls within 2 standard deviation of the mean.... c. 95% apex..

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Find the equation of the line passes through (-3,-4) and whose slope is 3/2 in slope intercept form. (Algebra 2 or Geometry)
ioda

Hey there! I'm happy to help!

Slope intercept form is y=mx+b, where m is the slope and b is the y-intercept. We already have the slope, so our equation so far is y=3/2x+b. We just need to find the b for it to be complete.

To do this, we plug in a point on the line and solve for b. We have a point (-3,-4), so let's use it and solve.

-4=3/2(-3)+b

Undo parentheses.

-4=-9/2+b

Add 9/2 to both sides

b=1/2

Therefore, our equation is y=3/2x+1/2.

Have a wonderful day! :D

4 0
4 years ago
Help ASAP can u explain a little too? (pls help if u don’t know it don’t answer pls) Thank You:)
larisa [96]
Since they are similar, the dimensions are in the same ratio. L1 = 5, L2 = 15, so they are in a 3:1 ratio. So if V1 = 60, then W1×H1 = 60/5 = 12
W2 must also be 3×W1 and H2 3×H1, and
3×3 = 9. So take 12×9 (W×H1×9) ×15 (L2) = V2
V2 = 12×9×15 = 1620 cm^3

Let me know the right answer when you find out!
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Step-by-step explanation:

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If f(x) = 4x + 12 is graphed on a coordinate plane, what is the y-intercept of the graph?
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Answer:  y=12

Step-by-step explanation:

the y-intercept of the graph when : x=0

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