Mathematics High School

The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find
the mean, median, mode, and standard deviation. Round to one decimal place as needed.
20, 22, 26, 27, 30, 31, 35, 35
Mean =
Median =
Mode =
Standard Deviation =

Answers

Answer 1

Mean = 28.3 , Median = 28.5, Mode = 35, Standard deviation = 5.2

(All of the above are rounded off to one decimal place)

How to find mean, median, mode ?

The given data are : 20, 22, 26, 27, 30, 31, 35, 35

We know that, mean = (sum of samples)/(no. of samples)

                                   = (20+22+26+27+30+31+35+35)/8

                                   = 226/8 = 28.25 = 28.3 (approx)

Here, median = (sum of 4th & 5th sample)/2

                       = (27+30)/2 = 57/2 = 28.5

Since 35 appears highest number of times, i.e. 2 times, then we can say that mode is equals to 35

What is the required standard deviation ?

Standard deviation = √{(20-28.3)²+(22-28.3)²+(26-28.3)²+(27-28.3)²+(30-28.3)²+(31-28.3)²+(35-28.3)²+(35-28.3)²}/8

= √{68.89+39.69+5.29+1.69+2.89+7.29+44.89+44.89}/8

= √(215.52/8) = √(26.94) = 5.190 = 5.2 (approx)

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Related Questions

Find the value of the variable(s). If your answer
is not an integer, leave it in simplest radical
form.
12.
x
30°
285
Not drawn to scale
a. x = 14, y = 42-43
b. x= 14 /3, y = 42
= 42-/3, v= 14
d x=42, y = 14 /3

Answers

B it’s definitely B pick B

I am just going to ask this question again because I keep getting a scam answer

Answers

Answer:

14.52 seconds

Step-by-step explanation:

Whats the answer ?

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second.
y=-16x^2+148x+128
Hope this elf full to you ( thanks) !

Help plz like fr someone asapppp help me

Answers

The answer would have to be D.

EXTRA POINTS- Find the volume of the following solids

Answers

Answer: Their are 40 cm salsa in the jar.

1500cm are missing in the jar.

Step-by-step explanation:

Because cm is 10 and if you multiply 10x15 you will get 1500. If you multiply 10 and 4 you will get 40.

Write and equation in slope intercept form of the line shown

Answers

Answer:

y=-1x-4

Step-by-step explanation:

Its right trust me. Brainliest?

Work out the circumference of this circle.
Take it to be 3.142 and give your answer to 1 decimal place.
4 cm

Answers

Answer:

circumference=2\pi r

25.12cm

Step-by-step explanation:

hope this helps

The required circumference of the given circle is 25.12 cm as shown figure.

What is the Circumference of a circle?

The Circumference of a circle is defined as the product of the diameter of the circle and pi.

C = πd

where 'd' is the diameter of the circle

We have been given data as follows:

The radius of the circle (r) = 4 cm

Circumference of the circle = 2πr

Substitute the values in the above formula and we get

Circumference of the circle = 2π(4)

Circumference of the circle = 3.14(8) = 25.12 cm

The required circumference of the given circle is 25.12 cm.

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Solve the two-step equation. 14=31.7-3x

Answers

Answer:

x=5.9

Step-by-step explanation:

First, you want to isolate x so you have to subtract 31.7 from both sides. This will make the equation -3x=-17.7. Because they are both sides are negative, you can change both sides to positive so it will be 3x=17.7. Next, you want x to be 1 so you have to divide 3 in both sides. This will make the equation x=17.7/3. Simplify that to get x=5.9.

If this has helped you, please mark as brainliest.

Answer:

1203.3734754701242754528955797863116165046

Help I'm giving brainiest to whoever does both​

Answers

Answer:

1. A & E

2. B

Hope this helps :)

The answer to the first problem is A and E
The answer to the second problem is B

At Sophia's gymnastics camp, the gymnasts spent 2 hours and 45 minutes on the balance beam and 2 hours and 50 minutes on practicing vaulting. If the gymnastics camp ended at 2:25 P.M., what time did it start?

Answers

Answer: 8:50 am

Step-by-step explanation:

Well, you have to add the hours together, and remember that there is 60 minutes in an hour. You wouls get 5 hours and 35 minutes, or 5:35. You just count backwards from there. Hope this helped!

Find the probability. Enter your answer in simplest form.


Rolling a number greater than 3 on a standard number cube.


The probability of rolling a number greater than 3 is

Answers

Answer:

probability of rolling a number greater than 3 is 1/2

Step-by-step explanation:

all numbers on a standard number cube: 1, 2, 3, 4, 5, 6

number greater than 3:  4, 5, 6

three out of six, of one-half, are greater than three

What is the value of ( 2 1/4 ) ?

Answers

Answer:

2.25

Step-by-step explanation:

1/4 (one quarter) is equal to .25 or 25% of 100

2+.25=2.25

Different measurements are expressed in different units. Choose the correct SI units for the following types of measurement.

The SI units for measuring the velocity of the car:
The SI units for measuring the acceleration of the car:
The SI units for measuring force:
The SI units for measuring mass:

Answers

Answer:

i dont have one,

jus wanted to remind u that the beutiful

person above deserved brainiest

:)

also u need 2 answers minimum to give brainliest


Find the product of (x - 3)2

Answers


(
x
−
3
)
2
=
(
x
−
3
)
(
x
−
3
)
From here we can just FOIL; first, outer, inner, last. Multiply the first term in the first bracket (x), by the FIRST term in the second bracket (x), giving us
x
2
. Then, we multiply the outermost term on the left side by the OUTERmost on the right side, giving us
−
3
⋅
x
, equal to
−
3
x
. We then multiply the INNERmost terms together, which are again -3 and
x
, giving us
−
3
x
again. Finally we multiply the LAST term in the first bracket by the last term of the second, giving us
−
3
⋅
−
3
, or 9. Then, we simply write these out, in order:
x
2
−
3
x
−
3
x
+
9
Collect like terms:
x
2
−
6
x
+
9
And you're done!

Answer:

2x - 6

Step-by-step explanation:

Use distributive property.

(x - 3)2 = 2x - 6

On Saturday Keisha ran 2.421 kilometers. On Sunday she ran 1.53 kilometers.

How much farther did she run on Saturday than on Sunday?

Answers

Answer:

0.891 km furthur

Step-by-step explanation:

2.421 - 1.53 = 0.891

HELP IT"S DUE IN 30 MINS HELPPP ASAP ILL GIVE YOU 50 POINTS!!!

You work at a retail home improvement store. A customer wants to know how much paint is in a single can. The cans have a height of 10 inches and a diameter of 0.5 ft. In cubic inches, about how much paint is in each can?

1.96
7.85
94.2
282.6
1,130.4

Answers

Answer:

282.6

Step-by-step explanation:

v=pi r^2 h =3.14x9x10

since diameter is 0.5 feet then it is equal to 6 inch so diveided by 2 give 3 as radius and square 3 give 9 so 3.14x9x10 = 282.74 which 282.6 is the closees answer  

can someone help with this problem pls

Answers

Answer:

A

Step-by-step explanation:

20:12/4

5:3

QR is a radius of circle R and PQ is tangent to circle R. Find the value of x.

Answers

Answer:

x = 13

Step-by-step explanation:

using the Pythagorean theorem

x² = 85² - 84²

x² = 7225 - 7056 = 169

x = 13

Answer:

x = √(85²-84²)

x = √(7225-7056)

x = √169

x = 13

PLEASE HELLPPPP ASSSAPPP

Answers

there’s an app called photo math where u can take a picture of the problem and it gives u the answer.


hope that helps lol

Which of the followmg is an expression for "doubling a number n and dividing by 3"​

Answers

The expression for doubling a number n and dividing by 3 is 2n/3.

If x=2 and y=12 evaluate the following expression:y/x

Answers

I think you just do 12/2 which is 6
Answer: 6

Work:
(12)
——
(2)

Which of the expressions below has a 6 in the hundredths place of the product? Select all that apply.

A) 3.3 x 4.4
B) 2.36 x 16
C) 14.4 x 5.4
D) 9.6 x 5.21

Answers

Answer:

A

Step-by-step explanation:

What is this plz this is the last thing i need

Answers

Answer:

Exactly 1

Step-by-step explanation:

y = 2 x + 1

which expression is equivalent to 6p + 6p?

A 12p
B 36p
C 12 + 2p
D p ^6

Answers

Answer:

A

Step-by-step explanation:

They both share the same variable p, therefore you add the numbers to get the answer

Answer:

=12p

Step-by-step explanation:

Find Arc PR
Please help and give explanation ​

Answers

Arc PR is 156 degrees. Since both angles are are making the forming arc they should be congruent. You can put (5x+23)=(9x-21) which is x=11.
Then you plug in 11 into your equation; 5(11)+23=78.
Since the vertex is on the outside of the circle then the arc is forms is 2 times the value of the angle.
78(2)=156

PLEASEEE HELP I WILL GOVE BRAINLIEST! Plus 10 points





MDentyne Cinnamon Fire Sugar Free Gum contains 40% fewer calories than
regular gum. If a piece of regular gum contains 5 calories, how many calories
does one stick of Dentyne Cinnamon Fire Sugar Free gum contain?

Answers

Answer:

3 calories

Step-by-step explanation: 100%-40%=60% .6*5=3 calories

Answer:

4.6

Step-by-step explanation:

Adia is placing soil in flower pots. She has 58 quart of soil. She needs 54 quarts of soil to fill one whole flower pot. Use the drop-down menus to complete the statements below about the flower pots that Adia can fill with the soil she has.

Answers

Answer:

1 whole flower pot

Step-by-step explanation:

Given that:

Quart of soil Adia has = 58

Quart of soil to fill a whole flower pot = 54

The pot Adia can fill. With the soil he has :

Quart of soil Adia has / Quart of soil to fill a whole flower pot

= 58 / 54

= 1.074 pots

= 1 flower pot

Help ASAP I’ll mark you as brainlister

Answers

The angle of elevation is 63.4

HELP DOES ANYONE KNOW HOW TO DO THIS?

Answers

Answer:

im pretty positive its exponential

Step-by-step explanation:

Answer:

Linear a good app to do this work is Desmos graph the pairs to see if they are straight

Rex is making window cleaner by mixing vinegar and water. The ratio table
below shows how much of each ingredient to mix together.
WINDOW CLEANER
Cups of
Vinegar
Cups of
Water
1
3
2.
6
3
9
If Rex uses 7 cups of vinegar, how many cups of water does he need to add?

Answers

Answer:

21

Step-by-step explanation:

In the chart, the left side increases by one, and the right side increases by 3. So the left side multiplied by 3 will give you the right side. 7 x 3 = 21, so he will need 21 cups of water.

answer both for a ( brain list , thanks , and a 5 star review)

Answers

Answer:

1/ 6

7/ 12

Step-by-step explanation:

Answer:

7a) 1/7

7b) 7/12

Step-by-step explanation:

For 7a) you know that the denominator of 5/6 is equal to 6 so that means you should make 1 have a denominator of 6. To do that, you have to multiply the denominator and the numerator by 6 to get 6/6-5/6=?. With this, you could easily solve the two fractions because they have equal denominators. You subtract the numerator and keep the denominator. 6-5=1 so the answer is 1/6.

For 7b) I would first convert 1 3/12 into an improper fraction. To do that, you have to multiply the whole number by the denominator then add the numerator. It will look like this 12x1+3/12 which is equal to 15/12. This makes the question easier to solve. You then want to convert 2/3 to have a denominator of 12. To do that, you have to multiply 4 on the numerator and denominator. This will turn the fraction into 8/12. After you do that, you can easily subtract the fractions again. you do 15-8/12 which is equal to 7/12.

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