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MariettaO [177]
3 years ago
9

The graph below shows three different normal distributions. 3 normal distributions are shown. They all peak at the same point, b

ut they all have different heights and widths. Which statement must be true?
A) Each distribution has a different mean and the same standard deviation.
B) Each distribution has a different mean and a different standard deviation.
C) Each distribution has the same mean and the same standard deviation.

D) Each distribution has the same mean and a different standard deviation.

Mathematics
2 answers:
yuradex [85]3 years ago
8 0

Answer:

D) Each distribution has the same mean and a different standard deviation.

Step-by-step explanation:

just took test edg2020

ella [17]3 years ago
7 0

Answer:

d

Step-by-step explanation:

edge 2020

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Which expression is equivalent to 144 superscript three-halves?
IrinaK [193]

Using the law of indices the equivalent expression of 144^{\frac{3}{2} } is 1728

<h3>How to find equivalent expression?</h3>

The equivalent expression of 144^{\frac{3}{2} } can be express as follows:

Using the law of indices,

(a^{b} )^{c}  = a^{bc}

Applying this laws,

144^{\frac{3}{2} }=(12^{2} )^{\frac{3}{2} }

Hence,

144^{\frac{3}{2} }=(12^{2} )^{\frac{3}{2} } = 12^{3}

Finally,

12³ = 1728

learn more on expression here: brainly.com/question/16619965

#SPJ4

8 0
2 years ago
Read 2 more answers
Riley is currently 4 times as old as her brother. If Riley was 11 years old 5 years ago, how old is Riley's brother now?
Sonbull [250]
Riley's age = r
Riley's brother's age = r/4

If Riley was 11 five years ago, Riley is currently 11 + 5 years old, or 16 years old.

Now we just need to use r/4 to find Riley's brother's age:

16 /4 = 4

Riley's brother is 4 years old.

Hope this helps!
5 0
3 years ago
Math help please im so confused
Len [333]

Answer:

Angle 3 is 49 degrees

=============================

Explanation:

Angle 1 is 50 degrees and angle 2 is 48 degrees. Added up, they total to 98 degrees. This is angle DEF.

Angle DEF is congruent to angle ABC because they are alternate exterior angles and because lines m and n are parallel

We are told that angle ABC is bisected (aka cut in half) because of line s; which means that the angles labeled "4" and "5" are exactly half that of angle ABC = 98 degrees

Therefore, angle 4 is 98/2 = 49 degrees and so is angle 3 (due to angles 3 and 4 being vertical angles; angle 3 = angle 4)

4 0
3 years ago
What is the range of the function?
Tanya [424]

Answer: Option D

Step-by-step explanation:

The y-axis of the table represents the range of the function.

3 0
3 years ago
What is the standard form of y = 6(x - 2)2 - 3?
AveGali [126]

Answer I think A

Step-by-step explanation:

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2 years ago
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