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3 years ago

A probability distribution for all possible values of a sample statistic is known as a _____.

Mathematics

2 answers:

Katyanochek1 [597]3 years ago

7 0

Answer:

Sampling Distribution

Step-by-step explanation:

A sample is a portion of the population chosen randomly or with certain techniques.

A statistic is a property of sample that describes the sample

Sampling distribution of statistic is a collection of all possible values of statistics for samples taken from the population. To be more precise it is probability distribution of all the outcomes of statistics of samples from the population.

Sample distribution of mean:

It can be defined as the probability distribution of all the feasible or possible means of samples of same size size taken from the population.

erma4kov [3.2K]3 years ago

3 0

It is known as sampling distribution

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Melina graphed a line which passes through the points (-4, 2) and (6, 8). What is the slope of the line?

Ulleksa [173]

Answer:

The answer is

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

$m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-4, 2) and (6, 8)

The slope is

$m = \frac{8 - 2}{6 + 4} = \frac{6}{10} = \frac{3}{5} \\$

We have the final answer as

$\frac{3}{5} \\$

Hope this helps you

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3 years ago

7th grade math help me plzzz

Kaylis [27]

Answer:

Step-by-step explanation:

I hope this helps

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3 years ago

Stephanie spends $15 each month to belong to a photography club. As a member of the club she can develop rolls of film for $2.50

barxatty [35]

Answer:

The answer is A. This is because 2.50 times 5 is 12.50. 12.50 added with the photography monthly bill of $15 equals 27.50.

If this helped let me know! Have a great day! :)

6 0

3 years ago

Read 2 more answers

An insurance institute conducted tests with crashes of new cars traveling at 6 mi/h. The total cost of the damages was found fo

Anettt [7]

Answer:

a. Mean = $6,358.2

b. median = $6,275

c. Mode = none

d. Midrange = $6,647.5

There is no much difference in the measures of center.

Step-by-step explanation:

==>Given:

$7,402, $4,819, $8,969, $6,275, $4,326

==>Required:

a. Mean: sum of all values in the given sample data ÷ number of values in the sample

Mean = ($7,402 + $4,819 + $8,969 + $6,275 + $4,326) ÷ 5

= $31,791 ÷ 5

Mean = $6,358.2

b. Median: this is the meddle value if the data set when ordered. Ordering the data set, we have:

$4,326, $4819, [$6,275], $7402, $8,969

Our median is $6,275.

c. Mode is the most common value in the data set. Therefore, we have no mode since there is no value in our data set that appears the most.

d. Mid-range = (highest value + lowest value) ÷ 2

= ($8,969 + $4,326) ÷ 2

= 13,295 ÷ 2 = $6,647.5

3 0

3 years ago

A conveyor belt carries bales of hay from the ground to the loft of a barn 27 feet

DENIUS [597]

<u>Given</u>:

A conveyor belt carries bales of hay from the ground to the loft of a barn 27 feet above ground.

The belt makes an 30° angle with the ground.

We need to determine the distance that the bale of hay travel on the conveyor belt.

<u>Distance that the bale of hay travel on the conveyor belt:</u>

The distance that the bale of hay travel on the conveyor belt can be determined using the trigonometric ratio.

Let the distance that the bale of hay travel on the conveyor belt be x.

Thus, we have;

$sin \ \theta=\frac{opp}{hyp}$

Substituting $\theta=30^{\circ}, opp=27$ and $hyp=x$

Thus, we get;

$sin \ 30^{\circ}=\frac{27}{x}$

Simplifying, we get;

$x=\frac{27}{sin \ 30^{\circ}}$

$x=\frac{27}{(\frac{1}{2})}$

$x=54$

Thus, the value of x is 54 feet.

Hence, the distance that the bale of hay travel on the conveyor belt is 54 feet.

7 0

3 years ago