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Neporo4naja [7]
3 years ago
13

What is the difference between a standard normal distribution and a nonstandard normal distribution?

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0

Answer:

In a standard normal distribution;

The mean of the population is going to be zero and the population standard deviation is automatically one.

In a nonstandard normal distribution;

The mean of the population is not equal to zero and the population standard deviation is not equal to one.

Step-by-step explanation:

When looking at a  normal distribution: There are three major keys we need  to understand:

  • The bell shaped curve is the first thing that comes to the mind. In the bell- shaped curve, the mean is locate in the middle.
  • The total area under the curve is equal to 1.
  • The bell shape is symmetrical.  

The major difference between a standard normal distribution and a nonstandard normal distribution is that:

In a standard normal distribution, there are two additional things attached.

The mean of the population is going to be zero and the population standard deviation is automatically one.

In a nonstandard normal distribution;

The mean of the population is not equal to zero and the population standard deviation is not equal to one.

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Follow the directions to solve the system of equations by elimination. 8x + 7y=39 4x – 14y = -68​
harina [27]

Step-by-step explanation:

Hey there!

Here;

The equations are;

8x + 7y = 39.......(i)

4x - 14y =  - 68..........(ii)

Multiplying equation (i) by 2.

16x + 14y = 78

<u>4</u><u>x</u><u> </u><u>-</u><u> </u><u>1</u><u>4</u><u>y</u><u> </u><u> </u><u> </u><u>=</u><u> </u><u>-68</u>

20x = 10

x =  \frac{10}{20}

x = 1/2.

Putting value of 'x' in equation (i).

8 \times  \frac{1}{2}  + 7y =  39

4 + 7y = 39

7y = 3 9 - 4

y =  \frac{35}{7}

Therefore the value of y is 5.

<u>Check</u><u>:</u>

<u>Put</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>x</u><u> </u><u>and</u><u> </u><u>y</u><u> </u><u>in</u><u> </u><u>equation</u><u> </u><u>(</u><u>i</u><u>)</u><u>.</u>

8x + 7y = 39

8 \times  \frac{1}{2}  + 7 \times 5 = 39

4 + 35 = 39

39 = 39

(True).

<u>Therefore</u><u>, </u><u>the</u><u> </u><u>solution</u><u> </u><u>is</u><u> </u><u>;</u><u> </u><u>(</u><u>1</u><u>/</u><u>2</u><u>,</u><u>5</u><u>)</u><u>.</u>

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

8 0
4 years ago
Which of the a-values satisfy the following inequality?<br> 7 + a &lt; 11
Zolol [24]

Answer:

a < 4

Step-by-step explanation:

7 + a < 11

Subtract 7 from each side

7+a-7 <11-7

a < 4

7 0
3 years ago
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Maya cut 3 1/4 yards of fishing line from a new reel. How much is this in inches
ikadub [295]

1 yard = 3 feet:

3.25 yards x 3 feet per yard = 9.75 feet.

1 foot = 12 inches:

9.75 feet x 12 inches per foot = 117 inches.

6 0
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Our math team had m students last year, but this year it has already n students! By what percent did the number of students grow
AlekseyPX
For this case we are going to assume the following:
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the number of students did grow by:
 
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4 0
4 years ago
Read 2 more answers
HELP WITH ALL PLZ I NEED HELP
alex41 [277]
1.) 16/100 and 0.16
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12.)0.48
13.)0.02
14.)0.55
15.)D
I hope all of these are correct and help
4 0
3 years ago
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