Explain why the formulas for sample variance and population variance are different.
A. Variance is defined as the mean deviation, and, for a population, is computed as the sum of deviations divided by N. The sample variance will be biased and will consistently underestimate the corresponding population value.
B. Variance is defined as the mean squared deviation, and, for a population, is computed as the sum of squared deviations divided by N. The sample variance will be biased and will consistently underestimate the corresponding population value.
C. Variance is defined as the mean squared deviation, and, for a population, is computed as the sum of deviations divided by N. The sample variance will be biased and will consistently underestimate the corresponding population value.

Answer:

7,672,531

Step-by-step explanation:

because its a problem where you have to think about how you put them together

Answer:

The answer is 20-6x

Answer:

y=2, y=-2     y = 2i, y= -2i     y = 1, y = -1     y = i,   y = -i

Step-by-step explanation:

y^8+16=17y^4

Subtract 17 y^4 from each side

y^8 - 17 y^4+16=17y^4-17 y^4

y^8 - 17 y^4+16 =0

Let x = y^4

x^2 -17x + 16 =0

Factor

( x-16) ( x-1) =0

Using the zero product property

x-16 =0  x-1 =0

x=16  x=1

Replace x with y^4

y^4 = 16      y^4 = 1

y^4 -16 = 0          y^4 -1 =0

Replace y^2 with z

z^2 -16 =0                       z^2 -1 = 0

( z-4) ( z+4) = 0               ( z-1) = 0   ( z+1) =0

z=4  z=-4                           z=1            z=-1

Replace z with y^2

y^2 = 4   y^2 = -4           y^2 = 1       y^2 = -1

Taking the square root

y=2, y=-2     y = 2i, y= -2i     y = 1, y = -1     y = i,   y = -i

Answer: 1 and 7

Step-by-step explanation:

Since 7 is prime, you only have 1 and 7 multiplied to get 7 and when added together, form 8.

Answer:

80000

Step-by-step explanation:

Answer:

80,000

Step-by-step explanation:

Answer:

Step-by-step explanation:

It’s a

Answer:

D

Step-by-step explanation:

Answer: 12 for accurate 12.4

Step-by-step explanation: This is easy all you needed to do was divide 9,674.48 by 780.20 and get 12.4

Answer:

The slope of the line is 3.

Step-by-step explanation:

It is 3 because if you plug the numbers into the formula (y2-y1/x2-x1) you get 3/1, which simplifies to 3.

Step-by-step explanation:

Well you have to do y2-y1/x2-x1

Which you take the points (-4,2) and (-3,5). It doesn't matter what points you choose because they will end up as the same answer.

Now you do 5-2/-3-(-4)

I think you will be able to solve the answer now! Hope this helps <3

Answer:

if its a 90 degree angle u will  say 90 -46 to get m<2

if is a 180 degree angle u will say 180-46 to get m<2

hope this helped :) brainliestn pls

Answer:

-1

Step-by-step explanation:

It hits the y-axis at -1, so the answer is -1.

Answer:

Yes

Step-by-step explanation:

Despite the fact that this has more than one Y value, It passes the line test

therefore, it IS infact a Function

(disregard that last one)

Answer:

Yes

Step-by-step explanation:

A graph is only a function when there is only one y value for each x value.

As you see, there are no repeated x values, so it is a function.

Hope this helps

Answer:

(3, 0.5)

I hope this helps!

Answer:

5

Step-by-step explanation:

20 divided by 4 equals 5

or

4 times 5 equals 20

or

4+4+4+4+4=20

or

5+5+5+5=20

Answer:

311.62

Step-by-step explanation:

add a and b then subtract it by 400 there is ur answer my friend

Answer:

Plz mark me brainlest!

Step-by-step explanation:

311.62 Because I added that total and I got 551.78, and that doesn't make's sesne so I founded another answer for it and it's 331.62

Answer

331.62

Hope this helps you!

Answer:

Step-by-step explanation:

A lot of math is about identifying and matching patterns. Often, the patterns have an associated vocabulary. It helps to learn the patterns and the associated words.

__

Pattern: a(b +c) ⇔ ab +ac . . . description: distributive property

Pattern: a = b ⇒ a +c = b +c . . . description: addition property of equality

Pattern: a = b ⇒ a/c = b/c . . . description: division property of equality

Patterns: a -a = 0; a + 0 = a . . . description: properties of the additive inverse and the additive identity element

Patterns: a×(1/a) = 1; a×1 = a . . . description: properties of the multiplicative inverse and the multiplicative identity element

__

When parentheses come or go, the distributive property is usually involved. In the second line, you need to recognize that -2(3y) = -6y and that -2(-7) = +14. The result on the left is from applying the distributive property to remove parentheses.

The third line differs from the second line in that -14 shows up on both sides of the equal sign. This is a clue that the addition (or subtraction) property of equality is involved.

The fourth line differs from the third in that +14-14 disappeared from the left side, and -4-14 was replaced with -18 on the right side. The sum of a number and its opposite is zero, a property of the additive inverse. The fact that -4-14 = -18 is a property of real numbers. (You have to decide the best drop-down choice for that line.)

The fifth line shows both sides of the equation divided by -6. The multiplication (division) property of equality lets you do that.

The last line shows a simplification of the previous one. Again, the properties of real numbers and of the multiplicative inverse are involved. (You have to decide the best drop-down choice for that line.)

Answer:

2187

Step-by-step explanation:

3 ^2  * 3 ^5 = 2187

please mark brainliest

The answer is 3⁷ because when you are multiplying exponents with the same base, you keep the base and add the exponents. an example of this would be  4² x 4³. To simplify the expression you ignore the base, which is 4, and add the 2 and 3 to get 4⁵. So the answer to your question is 3⁷.

Answer:

The 3rd and the last one

I remember i had a a work like that before

Step-by-step explanation:

Answer:

20 bags

Step-by-step explanation:

10x12=120

120/6=20

There u go :)

Answer:

there are 20 potatoes in each bag

Step-by-step explanation:

I'm pretty sure you have to multiply 10 x 12 because there are 10 groups of a dozen potatoes. you get 120 and then you divide 120 by 6.

Answer:

it is B

Step-by-step explanation:

Answer:

D. is domain is (-10, infinite) and its range is (0, infinite)

Step-by-step explanation:

a p e x , just took the quiz

Answer:

We are given the function h(y) = 4|y + 2| - 3

So, to get the value of h(-8), we just have to replace the y in the equation with -8

In functions, the variable in the parentheses next to the name of the function is the variable we have to replace since the function is defined in the terms of that one variable. When you do more advanced questions, you will encounter functions with more than 1 variable

h(y) = 4 | y + 2 | - 3

replacing y with -8 to get the output in terms of -8

h(-8) = 4 | -8 + 2 | -3

h(-8) = (4 * 6) - 3

h(-8) = 24 - 3

h(-8) = 21

The system specification with predicates, quantifiers, and logical connectives are:

a. ∃C(x) ∀F(y) such that if F(y) is true, C(x) is true.

b. ∀U(x) (∃M(y) if ∀U(z), ∃M(w) is true, then E(x) is true).

c. ∀B(x) (∃D(y) D(y) can detect B(x) ↔ (∃P(z) ¬P(z) is true)).

d. ∀E(x, y) (∃P(z, w) and ∃P(u, v) such that P(z, w) and P(u, v) connect

E(x, y)).

e. ∀U(x) (¬P(x) is true, except for the system administrator who knows all passwords: ∀U(y) P(y) if y is the system administrator).

We have,

a.

Let C(x) be the predicate "x is a console" and F(x) be the predicate "x is a fault condition".

The specification can be expressed as:

∀F(x) ∃C(y) such that if F(x) is true, C(y) is true.

b.

Let U(x) be the predicate "x is a user" and M(x) be the predicate "x is a message".

The specification can be expressed as:

∀U(x) ∃E(y) such that if ∀U(x), ∃M(z) is true, E(y) is true.

c.

Let B(x) be the predicate "x is a security breach", D(x) be the predicate "x is a detection mechanism", and P(x) be the predicate "x is a compromised process".

The specification can be expressed as:

∀B(x) ∃D(y) such that D(y) can detect B(x) if and only if ∃P(z) such that ¬P(z) is true.

d.

Let E(x, y) be the predicate "x and y are distinct endpoints" and P(x, y) be the predicate "x and y are connected by a path".

The specification can be expressed as:

∀E(x, y) ∃P(z, w) and ∃P(u, v) such that P(z, w) and P(u, v) connect E(x, y).

e.

Let U(x) be the predicate "x is a user" and P(x) be the predicate "x knows the password".

The specification can be expressed as:

∀U(x) ¬P(x) is true, except for the system administrator who knows all passwords, which can be expressed as:

∀U(x) (x is the system administrator → P(x)).

Thus,

The system specification with predicates, quantifiers, and logical connectives are:

a. ∃C(x) ∀F(y) such that if F(y) is true, C(x) is true.

b. ∀U(x) (∃M(y) if ∀U(z), ∃M(w) is true, then E(x) is true).

c. ∀B(x) (∃D(y) D(y) can detect B(x) ↔ (∃P(z) ¬P(z) is true)).

d. ∀E(x, y) (∃P(z, w) and ∃P(u, v) such that P(z, w) and P(u, v) connect

E(x, y)).

e. ∀U(x) (¬P(x) is true, except for the system administrator who knows all passwords: ∀U(y) P(y) if y is the system administrator).

Learn more about predicates, quantifiers, and logical connectives here:

https://brainly.com/question/33819739

#SPJ4

Answer:

4

Step-by-step explanation:

because you can do 2x2=4 amnd 1x4=4 bnut u cant for the others.

Answer:

the chicken

Step-by-step explanation:

Answer:

The chicken

Step-by-step explanation:

you need a chicken to put the eggs

BTW TYSM

Answer:

22

Step-by-step explanation:

the answer is 22 duydtodogxhfydududurudyxhxoxitxyiydyid

Answer:

22..Hope it help you...

Step-by-step explanation:

1606/73=22

Answer:

20 tenths

Step-by-step explanation:

Answer:

I'm not really sure but I want to say A) 3/20