Help please man please

xxMikexx [17]

Answer:

A statistic is said to be unbiased if the mean of its sampling distribution is equal to the true value of the parameter being estimated.

Step-by-step explanation:

A parameter is a number that describes the population.

A statistic is a number that describes a sample.

A statistic used to estimate a parameter is unbiased if the mean of its sampling distribution is exactly equal to the true value of the parameter being estimated. For example, the mean of a sample is an unbiased estimate of the mean of the population from which the sample was drawn.

A statistic is biased if its expected value is not equal to the parameter.

8 0

3 years ago

Help me I don’t understand

Fantom [35]

Answer:

<1= 32*

<2= 32*

<3= 40*

Step-by-step explanation:

a triangle also adds up to 180*

m <1 = 90+58=148 then 180-148=32*

<1 and <2 are equal so <2 also =32*

m <3= 108+32=140 then 180-140=40

6 0

3 years ago

Val rented a bicycle while she was on vacation. She paid a flat rental fee of f dollars, plus $8.50 each day. The total cost at

damaskus [11]

The question is incomplete. Here is the complete question:

Val rented a bicycle while she was on vacation. She paid a flat rental fee of f dollars, plus $8.50 each day. The total cost at the end of her vacation was t dollars. Let d represent the number of days Val rented the bicycle. Write an equation representing the total cost at the end of her vacation.

Answer:

$t=f+8.5d$

Step-by-step explanation:

Given:

Flat rental fee = $f$

Variable fee per day = $8.50

Total cost at the end vacation = $t$

Number of days of her vacation = $d$

Using unitary method, we can find the variable fee for 'd' days.

1 day variable fee = $8.50

Therefore, 'd' days variable fee = $8.50d$

Total cost at the end of her vacation can be obtained by adding the fixed rental fee and the variable fee obtained for the given number of days.

Now, total cost is given as:

Total cost = Flat rental fee + Variable fee

Substituting all the variables and framing above in the form of an equation, we get:

$t=f+8.5d$

Therefore, the equation representing the total cost at the end of her vacation is $t=f+8.5d$

7 0

3 years ago

Graph and Label the Points on the coordinate plane below

Lapatulllka [165]

In order to graph these, you need to understand the X and Y axis.

The X-Axis contains the first number in your ordered pair, and goes left, right (horizontally) for example the first ordered pair you have.

(2,5 1/2). To do this, move 2 spaces to the right on your X-axis. now go 5 and a half spaces up, and plot the point.

(-2 1/2, 0.5) For this one, you move 2 and a half spaces to the left on the X-axis, and half a space up. put a point there.

(3.5, -4 1/2) move 3 and a half spaces to the right on your X-axis, and go 4 and a half spaces down. put a point there.

let me know if you have questions! :)

8 0

3 years ago

Claire accepted a new job at a company with a contract guaranteeing annual raises. Claire will get a raise of $2000 every year a

Tatiana [17]

Answer:

s(n)= 80,000+ 2,000n

Step-by-step explanation:

she has a starting salary of $80,000 and gets a $2,000 raise each year. Say she has worked there for 5 years, multiple 2,000 by 5 and add 80,000.

8 0

3 years ago

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