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LiRa [457]
2 years ago
12

A normal distribution has a mean of 10 and a standard deviation of 1. What is the probability of selecting a number that is at m

ost 10? Leave the answer in decimal form to 3 decimal places.​
Mathematics
1 answer:
Len [333]2 years ago
3 0

Answer: 0.500

Step-by-step explanation:

Given : A normal distribution has a mean(\mu) of 10 and a standard deviation(\sigma) of 1.

Let x be a random variable that represents numbers .

The probability of selecting a number that is at most 10 will be

P(x\leq10)=P(\dfrac{x-\mu}{\sigma}\leq\dfrac{10-10}{1})\\\\=P(z\leq0)=0.500

As the area occupied by standard normal curve less than equal to 0 = 0.500

So, required probability = 0.500

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38600 mg = n dag what does n equal???
Vlad [161]
Answer:
n = 3.68

Explanation:
We know that:
1 mg is equivalent to 0.0001 dag
To convert 38600 mg to dag, we will simply use cross multiplication as follows:
1 mg ..............> 0.0001 dag
38600 mg ......> n

n = (38600*0.0001) / 1
n = 3.68

Hope this helps :)
3 0
3 years ago
On a coordinate plane, point A is 7 units to the left. Point B is at (0, 0). Point C is 7 units to the right. Point D is 7 units
Savatey [412]

Answer:

point a

Step-by-step explanation:

(0,-7) would be left 7 units so its point a

4 0
2 years ago
Read 2 more answers
Please need help on this
zimovet [89]

Answer:

7047, people/km^2

Step-by-step explanation:

To find the answer, you would need to divide the numbers 8550405(people) and 1213.4(kilometers) <--- which where this came from.

Once you divide those numbers, you will directly get the number 7047 as your answer.

<h2>Please Mark me as brainly! Thank You!</h2>
4 0
3 years ago
Geometry math question no Guessing and Please show work thank you
Lelu [443]

DE + EF = 4x+2

DE = x+7

EF = 7

Substitute these in

x + 7 + 7 = 4x + 2

x + 14 = 4x + 2

subtract x from both sides

14 = 3x + 2

subtract 2 from both sides

3x = 12

divide both sides by 3

x = 4

substitute this in to find the length of DE

DE = x + 7

(4) + 7 = 11

the answer is 11

5 0
2 years ago
Read 2 more answers
Quadratic equation <br> 4x2 + 6x = 0
In-s [12.5K]

Answer:

x = -4 / 3

Step-by-step explanation:

step 1. simplify 4x2 to 8

8+6x=0

step 2. subtract 8 from both sides.

6x = -8

step 3. divide in both sides by 6.

x = - 8 / 6

step 4. simplify 8/6 to 4/3.

x = -4 / 3

4 0
2 years ago
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