The mean of the following frequency distribution is 25.2. Find the missing frequency x.

Class
0 - 10
10 - 20
20 – 30
30 – 40
40 - 50

Frequency
8
x
10
11
9​

Answers

Answer 1

Answer:

Solution:-

Frequency Distribution     Frequency     Mid values     F*M

0 - 10                                    8                     5                40

10 - 20                                  x                    15               15x

20 - 30                                 10                   25               250

30 - 40                                 11                   35               385

40 - 50                                  9                    45               405

_____________________________________________________

                                         Σf = 38+x                      Σfm = 1080+15x

______________________________________________________

Given Mean = 25.2

Mean = Σfm/Σf

25.2 = 1080+15x/38+x

25.2 × (38+x) = 1080+15x

957.6+25.2x = 1080+15x

25.2x - 15x = 1080 - 957.6

10.2x = 122.4

x = 122.4/10.2

x = 12

Missing frequency = 12  Answer

Answer 2

Hope it helps.

If you have any query, feel free to ask.

The Mean Of The Following Frequency Distribution Is 25.2. Find The Missing Frequency X.Class0 - 10 10

Related Questions

16.872 divided by 0.24


HELP I NEED HELP QUICJ

Answers

Answer:

70.3

Step-by-step explanation:

16.872/.24= 70.3

what is 985,000 in scientific notation

Answers

Answer:

9.85 * 10^5

Step-by-step explanation:

you move the decimal 5 times

Answer:

9.85 × 10^5

Step-by-step explanation:

Two triangles are graphed below. Are the two triangles similar?

Answers

Answer:

No

Step-by-step explanation:

One is smaller and one is bigger !

7 + (-2) is
units from 7, in the
direction.
7+(-2) =

Answers

i might be wrong.
7+(-2)= -9

please help me its 100 points

Answers

Answer: D

Step-by-step explanation:

Can you go to ytb and search up”surviv but medic is MVP” and subscribe to the channel Ace Plays, I have around 67 subscribers

Can you go to ytb and search up”surviv but medic is MVP” and subscribe to the channel Ace Plays, I have around 67 subscribers

Can you go to ytb and search up”surviv but medic is MVP” and subscribe to the channel Ace Plays, I have around 67 subscribers.

Step-by-step explanation:

Answer:

f

Step-by-step explanation:

Four bottles of Powerade cost $3.88. Find the unit price of each bottle.

Answers

4.88/4= 0.97 so 97 cents a bottle

Thirty-nine percent of U.S. Adults think that the government should help fight childhood obesity. You randomly select six U.S. Adults. Find the probability that the number of U.S. Adults who think that the

Answers

we are to find: the probability that the number of U.S. adult who thinks that the government should help fight childhood obesity is:

(a) exactly two  (b) at least four

Answer:

P(X =2) = 0.3160

P(X  ≥ 4) = 0.1656

Step-by-step explanation:

From the given information:

The population proportion = 39/100 = 0.39

the sample size = 6

(a) The required probability that exactly two adults fight childhood obesity out of the six is:

[tex]P(X=2) = (^6_2) (0.39)^2 (1-0.39)^{6-2}[/tex]

[tex]P(X=2) = \dfrac{6!}{2!(6-2)!} (0.39)^2 (1-0.39)^{4}[/tex]

[tex]P(X=2) = 15 \times 0.1521 \times 0.1385[/tex]

P(X =2) = 0.3160

(b)

The probability that at least 4 adults did is:

P( X ≥ 4) = P(X = 4) + P(X = 5) + P(X = 6)

[tex]P( X \ge 4) =(^6_4) (0.39)^4 (1-0.39)^{6-4} + (^6_5) (0.39)^5 (1-0.39)^{6-5}+ (^6_6) (0.39)^6 (1-0.39)^{6-6}[/tex]

[tex]P( X \ge 4) =(\dfrac{6!}{4!(6-4)!}) (0.39)^4 (1-0.39)^{2} +(\dfrac{6!}{5!(6-5)!}) (0.39)^5 (1-0.39)^{1}+ (\dfrac{6!}{6!(6-6)!}) (0.39)^6 (1-0.39)^{0}[/tex]

P(X  ≥ 4) = 0.1291 + 0.0330 + 0.0035

P(X  ≥ 4) = 0.1656

What is 3.8 x 105 in standard notation?
A. 380,000
B. 3,800,000
C. 3.85
D. 0.000038

Answers

Answer:

399

Step-by-step explanation:

it none of those I can tell you that

Answer: C. 3.85

Step-by-step explanation:

Standard notation is the normal way of writing numbers.

You should move the point as many times as the exponent indicates.

The graph shows a system consisting of a linear equation and a
quadratic equation.
8
What is the solution to the system?
7
6
5
(3, 7)
4
3
(-1, 3) and (3, 7)
2
3 and 7
1
-1 and 3
-3-2
1
2
3
4
5
-3
-4
-5
1 2
3
4
5
7
9
Next

Answers

Answer:

(-1,3) and (3,7)

Step-by-step explanation:

The solution to the system can be obtained from the points where the linear equation crosses the quadratic model

We have this at the points;

(-1,3) and (3,7)

answer all of the questions please

Answers

Answer:

Domain (-2,3)

Range (-10, 20)

Function: Definitely

Step-by-step explanation: So check it right. Starting with Domain how far do our values go in the x direction positive and negative in this case the farthest to the left is -2 and to the right is 3. For range same thing but now we look at the y axis -10 is lowest and 20 is the highest. Open circles don't affect our domains or range but they are important for determining functions. This is a function because going up and down the graph vertically at any points doesn't collide with any point more than once. If the open circle were closed then this would not be a function but in this case it is a function.

Charlotte bought a kayak for $2,008. She made equal payments over a 24-month period. About how much did she pay
each month?
O $16
$84
$160
$840
Save and Exit
Next
darkathis and the
Submit

Answers

Answer:

$84

IF you get the $2,008 and divide it into 24 parts you get 84 dollars for each month

1. At a water park, you can rent a raft for $2 per
hour.

Answers

Is there a question here


What is the slope?

Simplify your answer and write it as a proper fraction, improper fraction, or integer.

Answers

Answer:

Slope is 4.

Step-by-step explanation:

First, we need to find two points in order to find the slope.

Point A (50, 0)

Point B (60, 40)

Next, we have to plug the points in to the slope equation.

[tex]m = \frac{y_{2} - y{1}}{x_{2}- x_{1}}[/tex]

Point A will be [tex](x_{1}, y_{1})[/tex]

Point B will be [tex](x_{2}, y_{2})[/tex].

[tex]m = \frac{40 - 0}{60- 50}[/tex]

[tex]m = \frac{40}{10}[/tex]

[tex]m = 4[/tex]

Therefore, the slope is 4.

Hope this helped! <3

Older Orchards need more hives per acre Caleb has decided to place 6 hives for every 2 acres on an older peach orchard Zeke one of Caleb workers delivery 10 hives to a 30 acre peach orchard did Zeke follow Calebs decision.how does the table prove your answer.

With a table

Answers

Answer:

Zeneca did not follow the directions. In order to follow Caleb's directions, Zelda would need to bring in 6 hives for every 2 acres of peaches.

If there are 30 acres, this means he would 15 groups of 6 hives (90 hives). He only brought 10.

Step-by-step explanation:

define an algorithm?​

Answers

Step-by-step explanation:

An algorithm is a set of instructions designed to

perform a specific task. This can be a simple process, such as multiplying two numbers, or a complex operation, such as playing a compressed video file.

hope it helps!

Answer:

how are you raaz

hope you will fine

jackie won tickets playing the bowling ball game at a local arcade

Answers

Answer- is the it? Or is there more

Does anyone know how to solve this (4-7i) - (-3+6i) ?

Answers

Step-by-step explanation:

(4-7i)-(-3+6i)

4-7i+3-6i

7-13i(simplified)

Answer:

7-13i

Step-by-step explanation:

(4-7i) - (-3+6i)

4-(-3)+(-7-6)i

7-13i

simply fully please ​

Answers

Answer:

a) x^4

b) y

Step-by-step explanation:

whenever you divide exponents with the same base, subtract the exponents. for ex., a) 7-3=4, so the answer is x^4. Similarly with b, subtract 5-4.

X to the power of 4 and simply just Y to the power of 1 or just Y

PLEASE HURRY!!!

Which number can each term of the equation be multiplied by to eliminate the fractions before solving?
-m-=2 ++m
O2
O3
4
O5

Answers

Answer:

4

Step-by-step explanation:

4 because four is the LCM OF 2 AND 4

The answer is 4 hope this helps

Find all possible solutions for x and y such that △ABC is congruent to △DEF.

△ABC: sides of length 18, 25, and 5x − 3.
△DEF: sides of length 25, 22, and 5 − y.

△ABC ≅ △DEF when x is
and y is

Answers

Answer:

x = 5    y = -13

Step-by-step explanation:

5(5) - 3 = 22 and 5 - (-13) = 18

The value of x and y is △ABC ≅ △DEF are 5 and -13 respectively

Since △ABC is congruent to △DEF. hence all the sides of △ABC will be equal to △DEF.

Given the sides of △ABC to be 18, 25, and 5x − 3.

Sides of △DEF to be 25, 22, and 5 − y

This shows that the third side of triangle △ABC is 22, hence

5x - 3 = 22

5x = 22 + 3

5x = 25

x = 5

Similarly, the thirs side of △DEF will be 18, hence;

5 - y = 18

y = 5 - 18

y = -13

Hence the value of x and y is △ABC ≅ △DEF are 5 and -13 respectively

Learn more here: https://brainly.com/question/23961310

Aubrey has 25 friendship bracelets she wants to divide among her 3 friends. What is the rounded number of bracelets Aubrey should give each of her friends?

Answers

Answer:

She can give 8 friendship bracelets to each of her friends and have 1 left-over.

Step-by-step explanation:

HELP I GIVE BRAINEST!

Answers

Answer:

350 milliliters

Step-by-step explanation:

350 is 70% of 500 and is the answer

7 Solve the problem,
A rectangular prism has a base length of 4 cm, a base width of 2 cm, and a height of 6 cm. What would be the volume if we tripled the size of the prism?
114 cm
1,296 cm
432 cm
48 cm
384 cm

Answers

Answer:

1,296 cubic cm

Step-by-step explanation:

V = lwh

V = 4(3) x 2(3) x 6(3)

V = 12 x 6 x 18

Answer:

1,296 cm

Step-by-step explanation:

lenght=4

Width=2

Height=6

Volume of rectangular prism= lenght*Width*height

4*2*6

4(3)*2(3)*6(3)=

1,296 cm

40 POINTS! What is the difference in graphing y = 4x + 6 and f(x) = 4x + 6, if any. Explain.

Answers

Answer:

                                                   

Step-by-step explanation:

Answer:

No difference both of them are the same.

Step-by-step explanation:

When you graph the equation manually or with sites like geogebra you can see that they are the same line.

one third of a land is on maize, a fifth of the remainder is on potatoes and the rest which is 0.5 ha is on beans. how much of the land is on potatoes?

Answers

Answer: [tex]1250\ m^2[/tex]

Step-by-step explanation:

Let x= Total land.

Then for Maize = [tex]\dfrac{x}{3}[/tex]    

For Potatoes = [tex]\dfrac15(x-\dfrac {x}{3})=\dfrac15(\dfrac{2x}{3})=\dfrac{2}{15}x[/tex]

For beans = [tex]x- (\dfrac{x}{3}+\dfrac{2}{15}x)=0.5 \ ha[/tex]

[tex]\Rightarrow\ x- (\dfrac{5x+2x}{15})=0.5 \ ha\\\\\Rightarrow\ x- (\dfrac{7x}{15})=0.5 \ ha\\\\\Rightarrow\ \dfrac{15x-7x}{15}=0.5 \ ha\\\\\Rightarrow\ \dfrac{8x}{15}=0.5 \ ha\\\\\Rightarrow\ x=0.5\times\dfrac{15}{8} \ ha\\\\\Rightarrow\ x=0.9375 \ ha[/tex]

1 ha = 10000.00 m²

0.9375 ha = 9375 m²

Land for potatoes = [tex]\dfrac{2}{15}(9375) =1250\ m^2[/tex]

Hence, [tex]1250\ m^2[/tex] of the land is on potatoes.

-1 - (-4) can someone please help me !!!!!!!

Answers

your Answer will be:

3

3. when you see two negatives next to each other like the minus and -5 you add. so you would have -1+4 which is 3

Given: Ray E B bisects ∠AEC.

∠AED is a straight angle.

Prove: m∠AEB = 45°

A horizontal line has points A, E, D. 2 lines extend from point E. One line extends to point B and another extends to point C. Angle C E D is a right angle.
Complete the paragraph proof.

We are given that Ray E B bisects ∠AEC. From the diagram, ∠CED is a right angle, which measures
degrees. Since the measure of a straight angle is 180°, the measure of angle
must also be 90° by the
. A bisector cuts the angle measure in half. m∠AEB is 45°.

Answers

Answer:

1: 90

2:AEC

3: angle addition postulate

Step-by-step explanation:

Looking at the diagram, ∠CED is a right angle, the angle that measures

degrees are:

90AECAngle addition postulate

What is an angle?

An angle is known to be a term that connote a kind of figure that is created by two rays that can be seen a common endpoint.

Note that an angle is shown by the symbol ∠. and thus Looking at the diagram, ∠CED is a right angle, the angle that measures degrees are 90 and Angle addition postulate.

Learn more about angle from

https://brainly.com/question/25770607

#SPJ2

Which is a list of all the zeros of x^5 + 7x^4 = 18x³?

A. {0,2}
B. {-9, 0, 2}
C. {-2, 0, 9}
D. {-9, -2, 0, 2, 9}

Answers

Answer:

B

Step-by-step explanation:

Because there is three numbers

Salma used a photocopier to dilate the design for a monorail track system. The figure shows the design and its photocopy: Two irregular quadrilaterals ABCD and EFGH are drawn. EFGH is the photocopy of design ABCD. AB measures 15 meters, DC measures 17 meters. No dimensions are shown on EFGH. The ratio of AD:EH is 1:2. What is the length, in meters, of side GH on the photocopied image? 15 17 30 34

Answers

Answer:

The answer is 34

Step-by-step explanation:

The ratio of AD:EH is 1:2, so therefore the other line segments have the same ratio. Using this logic, we see that DC is equal to 17 m, and we need to find GH. All we do now is double the measurement of DC since the ratio of the two shapes is 1:2.

Therefore, 17 * 2 = 34

Answer:

34

Step-by-step explanation:

hope this helps

what is the nth term of the arith metic sequence 10,16,22,28,......?​

Answers

Answer:

nth term = 6n + 4 where n = no. of terms.

I hope it will be useful.

Answer:

[tex]a_{n}[/tex] = 6n + 4

Step-by-step explanation:

The n th term of an arithmetic sequence is

[tex]a_{n}[/tex] = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 10 and d = a₂ - a₁ = 16 - 10 = 6, then

[tex]a_{n}[/tex] = 10 + 6(n - 1) = 10 + 6n - 6 = 6n + 4

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