The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students. Number of practice problems completed in 30 minutes Sample 1 14 15 16 17 16 15 16 15 17 18 Mean = 15.9 Sample 2 16 18 17 14 15 14 18 14 15 16 Mean = 15.7 Sample 3 18 14 16 15 15 14 17 15 19 13 Mean = 15.6 Which statement is most accurate based on the data? A. A prediction based on the data is not completely reliable, because the means are not the same. B. A prediction based on the data is reliable, because each sample has 10 data points. C. A prediction based on the data is not completely reliable, because the means are too close together. D. A prediction based on the data is reliable, because the means of the samples are close together.​

The Table Shows The Number Of Practice Problems Completed In 30 Minutes In Three Samples Of 10 Randomly

Answers

Answer 1

Answer:

A

Step-by-step explanation:

Answer 2

The statement which is most accurate based on the data is option(D)A prediction based on the data is reliable, because the means of the samples are close together.​

What is Mean?

Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers

From the given data,

Mean of the sample 1 = 15.9

Mean of the sample 2 = 15.7

Mean of the sample 3 = 15.6

All three mean are close together.

Therefore the data is reliable

Hence, the statement which is most accurate based on the data is option(D)A prediction based on the data is reliable, because the means of the samples are close together.​

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Related Questions

Plz help me with this question

Answers

Answer: KJ becuase it is the first two like on but put backwards.

The correct answer is KJ

Which symbol correctly compares the mixed numbers?

Answers

Answer:

a is the answer

Step-by-step explanation:

there not equal

6. Devon draws one marble from
a bag containing 5 red, 3 green,
and 4 yellow marbles. What is the
probability that Devon draws a
green marble?

Answers

Answer: Probability: 3/12 or 1/4

Step-by-step explanation:

On the windowsill is a plant that is 10 inches tall. It is growing 3 inches per
week. A second plant, which is 17 inches tall, is on the coffee table. It is
growing 2 inches per week. Eventually the two plants will be the same
height. How tall will the plants be? How many weeks will that take? *

Answers

Answer:18 days

Step-by-step explanation:

Here's a short table of heights:

 day 0: height = 1

 day 1: height = 1 + (1/2)(1) = 3/2

 day 2: height = (3/2) + (1/3)(3/2) = 3/2 + 1/2 = 2

The pattern of heights is ...

 (day, height) = (0, 1), (1, 1.5), (2, 2)

The plant is growing 1/2 its original height each day, so we can write the equation ...

 h = 1 + d/2

We want to find the number of days (d) that result in a height of 10 (ten times the original height).

 10 = 1 + d/2

 9 = d/2 . . . . subtract 1

 18 = d . . . . . multiply by 2

It took 18 days for the plant to grow to 10 times its original height.

Answer:

it would take 9 weeks for both of the plants to equally meet the same height which is 33 inches

Step-by-step explanation:

Can i please get branelist

Not gonna say nothing else nope nothing

Answers

Answer:

440  Cubic  Inches.

Step-by-step explanation:

you just times all of them to get the answer. Have A Great Day!

Answer:

440in

Step-by-step explanation:

Can someone pls help me

Answers

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\textsf{Your GUIDE}\huge\downarrow[/tex]

[tex]\large\text{The DISTRIBUTIVE FORMULA is......}\\\large\text{a(b + c)}\\\large\text{a(b) + a(c)}}\\\large\text{a(b) = ab}\\\large\text{a(c)=ac}\\\large\text{= \underline{ab + ac}}[/tex]

[tex]\text{Now lets SOLVE for your QUESTION, shall we?}}[/tex]

[tex]\large\text{\bf{9(2n +1)}}\\ \large\text{\bf{9(2n) +9(1)}}\\\arge\text{\bf{9(2n)=18n}}\\\large\text{\bf{9(1)=9}}\\\large\text{\bf{= \underline{18n+9}}}}[/tex]

[tex]\boxed{\boxed{\bold{Answer: 18n +9}}}\huge\checkmark[/tex]

[tex]\large\textsf{Good luck on your assignment and enjoy your day!}[/tex]

~[tex]\frak{Amphitrite1040:)}[/tex]

Rearrange the following formula to make c the subject.

a= b/c + 5

Answers

Responder

1

cachemirisufyan

Experto

168 respuestas

1.5K personas ayudaron

2a + 2c = 5a - 5b

recopilar términos ligeros.

toma 2a en el otro lado

2c = 5a -2a-5b

2c = 3a - 5b

divide 2c's 2 en ambos lados

y

c = (3a - 5b) / 2

dar un más inteligente por favor. tnx que tengas un buen día.

Graph the inequality x>13.

Answers

———0———13——> was hard to wire on a keyboard but it would be put so 13 is greater then zero and the line would continue to the right side because X is greater and it would be a closed dot on 13 because there is no greater then or equal to nor a less then or equal to im pretty sure haven’t done with in a while but i hope this helps bro

Answer:

The graph is attached.

Step-by-step explanation:

The open circle is because the inequality sign is >. If the sign is > or <, the circle is plotted open. If the sign is [tex]\geq[/tex] or [tex]\leq[/tex], the circle is plotted closed.

The sign is greater than, so the arrow is pointed to the right (where the numbers are going up).

The circle is plotted between 12 and 14 because that is point 13, like the inequality says.

Hope it helps!

PLEASE HELP ME WITH THIS ILL GIVE U BRAINLEST

Answers

Answer:

y=-2/5x+5

Step-by-step explanation:

I need help it’s due in 30 minutes

Answers

Answer:

yeet

Step-by-step  

i dont know

i need help ! i will give u brainliest

Answers

b1 = 11 b3= 17 b5= 23 b7=29

20 points! will mark brainliest!
A 103-foot wire is used to support a utility tower. It runs from the tower to the ground and forms a 24° angle with the ground.

Answers

Answer:

Height of Tower = 41.8901 ft

Base to Ground Wire = 94.0905 ft

Step-by-step explanation:

So you want to find the opposing side of the angle, as well as the distance from the base to where the wire is attached to the ground. You would need to use CAH to find the ground, and SOH to find the height. To find the height or opposite, take the Sine of 24°, 0.4067, and times it by your hypoteneuse 103 to get an exact height of 41.8901 ft. Next, use the Cosine of 24°, 0.9135, and times that by your hypoteneuse 103 to get 94.0905 ft.

Here are the equations:

sin(24)=[tex]\frac{h}{103}[/tex]

cos(24)=[tex]\frac{h}{103}[/tex]

The base of the utility tower from the location where wire is attached to the ground is 94.09 feet and the wire attached to the tower at a height of 41.89 feet.

What is right angle triangle property?

In a right angle triangle ratio of adjacent side to the hypotenuse side is equal the cosine angle between them.

[tex]\cos\theta=\dfrac{a}{c}[/tex]

Here, (a) is the adjacent side, (c) is the hypotenuse side and [tex]\theta[/tex] is the angle made between them.

a) The value from the base of the utility tower from the location where wire is attached to the ground

The length of the wire is 103 foot. This is the hypotenuse side of triangle made by the wire, tower, and ground.

The angle between the wire (hypotenuse side) and ground (adjacent side) is 24 degrees. Therefore, the cosine angle can be given as,

[tex]\cos (24^o)=\dfrac{a}{103}\\0.9135\times103=a\\a=94.09\rm ft[/tex]

b) The wire attached to the tower at a height of __ feet.

In a right angle triangle ratio of opposite side to the hypotenuse side is equal the sine angle between them. Let the height of the tower (opposite side) is b ft. Therefore,

[tex]\sin(24^o)=\dfrac{b}{103}\\0.4067\times103=b\\b=41.89\rm ft[/tex]

Thus, the value from the base of the utility tower from the location where wire is attached to the ground is 94.09 feet and the wire attached to the tower at a height of 41.89 feet.

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what is the slope of the function below y=5x+8​

Answers

Answer:

This function is in y=mx+b form, where m is the slope, and b is the y-intercept.

So, for this equation the slope is 5.

Hope this helps!

Find the missing angle measurements

Answers

There’s no picture? Did you make a mistake

Answer:

there is no attachment

Step-by-step explanation:

evaluate x+16, when x=8

Answers

Answer:

24

Step-by-step explanation:

x + 16

8 + 16

= 24

You just plug in 8 in the x place. Hope this helps, thank you !!

Please help me out ASAP will give brainliest!!

Answers

Answer:

SEE EXPLANATION

Step-by-step explanation:

Side opposite to larger angle is larger and the side opposite to smaller angle is smaller.

Side opposite to the angle ABH is AH

and side opposite to angle GHB is GB

Since angle ABH > angle GHB..... (given)

Therefore, AH > GB

HELP ASAP!! PLS HELP IM BEGGING YOU PLS PLS PLS!! (BRIANLIST)

Answers

With what? You don’t have anything attached..

HI PLS HELP i dont understand my hw whats the answer?

Answers

no that is not a function because 0 has more than one output

Calculate the volume of this prism.
4 cm
10 cm
5 cm
8 cm
12 cm

Answers




Step-by-step explanation:
Separate into two shapes with
then use fomula length * width * height
shape 1: 7*8*10=560cm^3
Shpe 2: 5*8*6 =240cm^3
Add the two shapes 560+240=800cm^3


SOMEONE PLEASE ANSWER BOTH QUESTIONS ASAP THANKSS

Answers

56 and I can’t see the other one

Scott is 72 inches tall and Chris is 185 centimeters tall how tall is Chris in inches?

Answers

Answer:

Around 72.8 inches

Step-by-step explanation:

We are given the infomation that Chris is 185 centimeters tall.

There are 2.54 centimeters in an inch.

185/2.54 = 72.8346 ≈ 72.8

Chris should be around 72.8 inches.

Hope this helps.

Chris should be around 72.8 inches tall.

Here, we have,

given that,

Scott is 72 inches tall and Chris is 185 centimeters tall

We are given the information that Chris is 185 centimeters tall.

now, we know that,

There are 2.54 centimeters in an inch.

Since 1 inch = 2.54 centimeters

all we need to do is to divide 185 by 2.54

i.e. 185/2.54 = 72.8346 ≈ 72.8

The answer will be 72.8.

Chris should be around 72.8 inches.

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The function F represents the revenue in dollars the school can expect to receive if it sells 220-12× coffee mugs for dollars each.

Answers

Options B,D, and E are correct as per the given Function of the revenue.

What is the function?

A relationship between a group of inputs and one output is referred to as a function. In plain English, a function is an association between inputs in which each input is connected to precisely one output. A domain, codomain, or range exists for every function. Typically, f(x), where x is the input, is used to represent a function.

A. At $2 per coffee mug, the revenue will be $196.

This statement is incorrect.

If the price per mug is $2, then the revenue would be (220 - 12x) * 2. If x = 12 (i.e. 12 mugs are sold), then the revenue would be (220 - 12(12)) * 2 = $176.

B. The school expects to sell 160 mugs if the price is $5 each.

This statement is correct.

To find the number of mugs sold at a given price, we need to solve the equation (220 - 12x) * x = revenue, where revenue is the expected revenue at that price.

However, the graph does not provide enough information to determine the number of mugs sold at a price of $5.

C. The school will lose money if it sells the mugs for more than $10 each.

This statement is incorrect. The graph shows that the revenue is increasing as the price per mug increases, up to a maximum revenue of about $1,000 when the price is $10 per mug. Therefore, the school will not lose money if it sells the mugs for more than $10 each.

D. The school will earn about $1,000 if it sells the mugs for $10 each.

This statement is correct. The graph shows that the maximum revenue occurs when the price per mug is about $10. At this price, the revenue is approximately $1,000.

E. The revenue will be more than $700 if the price is between $4 and $14.

This statement is correct.

The graph shows that the revenue is increasing in this price range, and the minimum revenue occurs when the price per mug is about $18. Therefore, the revenue will be more than $700 if the price is between $4 and $14.

F. The expected revenue will increase if the price per mug is greater than $10.

This statement is incorrect. The graph shows that the revenue is increasing as the price per mug increases up to $10, but then it starts to decrease. Therefore, the expected revenue will decrease if the price per mug is greater than $10.

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Complete question:

Twenty people in your class want to be on a 5-person bowling team to represent the
class. How many different bowling orders can be chosen?

Answers

Answer:

4 :)

Step-by-step explanation:

what is 5+2 x 34-19+85-23​

Answers

Answer:

116

Hope this helps you :)

Chris works at a jewelry store, and he earns 4% commission on all sales that he makes. If Chris's jewelry sales total $1,370, how much will he earn in commission?

Answers

Answer:

[tex]\boxed {\boxed {\sf \$54.80}}[/tex]

Step-by-step explanation:

Chris earns the commission on the jewelery sales. To calculate what he earned, multiply the commission rate and his sales.

[tex]commission= commission \ rate * sales[/tex]

His rate is 4% and his sales are $1,370

[tex]commission= 4\% * \$1370[/tex]

Convert the percent to a decimal. Divide by 100 or move the decimal two spots to the left.

4/100= 0.04 4.0   -->   0.4   -->   0.04

[tex]commission= 0.04* $1370[/tex]

[tex]commission = \$ 54.8[/tex]

Chris's commission is $54.80

Brainliest for whoever get this right :):):):)

Answers

Answer:

the slope is: Positive

slope is: 1/5

y-intercept: -4

equation is: y = 1/5x - 4

Answer:

Slope: Postive

Slope: 5

Y-Intercept: -4

Equation: y = 5x - 4

Step-by-step explanation:

A positive slope rises left to right, a negative slope rises right to left.

The slope is [tex]\frac{rise}{run}[/tex].

The y-intercept is where the line meets the y-axis.

The equation is written in the form y = mx + b, where m is the slope and b is the y-intercept.

Hope it helps and is correct!

one 50 pound bag of fertilizer will cover 75 sq,ft of lawn. how many bags of fertilizer will breon need to cover 300 sq.ft of lawn

Answers

Answer: 4 bags.

Step-by-step explanation:

50lb bag = 75sq.ft.

75*4= 300

50lb *4=200.

i need help, can someone please help!

Answers

Answer:

(25 x 3) - 14 = 61!

Step-by-step explanation:

Write the slope-intercept equation of the line on this graph.

Answers

Answer:

where is the graph?

Step-by-step explanation:

What is 35^1/3 in the simplest radical form

Answers

The answer would be approximately 3.27
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