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lana66690 [7]
3 years ago
13

Properties of the normal distribution include?

Mathematics
1 answer:
V125BC [204]3 years ago
6 0

Answer:

Properties of a normal distribution

The mean, mode and median are all equal.

The curve is symmetric at the center (i.e. around the mean, μ).

Exactly half of the values are to the left of center and exactly half the values are to the right.

The total area under the curve is 1.

Step-by-step explanation:

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A six-sided die is rolled two times. What is the theoretical fractional probability that the first number is even and the second
Nostrana [21]

Answer:

The theoretical probability that the first number is even and the second number is odd is \frac{1}{4}.

Step-by-step explanation:

Since each dice has six sides, and there are two die, the total amount of different outcomes are 6^2 or 36. The probability of getting an even number on the first roll is \frac{3}{6} or \frac{1}{2}, and the probability of getting an odd number on the second roll is also \frac{3}{6} or \frac{1}{2}, so the probability of getting an even number on the first roll and an odd number on the second roll is \frac{1}{2} * \frac{1}{2} = \frac{1}{4}.

6 0
3 years ago
At one gym, there is a $12 start-up fee, and after that each month, m, at the gym costs $20. At another gym, each month at the g
nata0808 [166]

Answer:

6 months

Step-by-step explanation:

Gym1

12 + 20m

Gym2

22m

Set them equal

12 +20m = 22m

Subtract 20 m from each side

12 +20m-20m = 22m-20m

12 = 2m

Divide by 2

12/2 = 2m/2

6 =m

5 0
4 years ago
Write an equivalent expression in word form.<br><br> (1- 1/3) / 2
KonstantinChe [14]

Answer:

21

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the value of
LiRa [457]

Answer:

2

Step-by-step explanation:

-8(17-12)

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

-2(8-(-2)

= -8(5)

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-2(10)

= -40

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-20

<h2>Ans 2</h2>
4 0
3 years ago
Find the values of a and b such that
Varvara68 [4.7K]

Answer:

a = 1.5

b = 1.75

Step-by-step explanation:

First, we need to solve (x+a)^2 and replace the result in the initial equation as:

x^2+3x+4=(x+a)^2+b\\x^2+3x+4=x^2+2ax+a^2+b

Then, this equality apply only if the coefficient of x is equal in both sides and the constant is equal in both sides.

It means that we have two equations:

3x=2ax\\4=a^2+b

So, using the first equation and solving for a, we get:

3x=2ax\\3=2a\\a=\frac{3}{2}=1.5

Finally, replacing the value of a in the second equation and solving for b, we get:

4=a^2+b\\4=1.5^2+b\\b=4-1.5^2\\b=4-2.25\\b=1.75

3 0
3 years ago
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