The table provides information on road accidents reported to the police for the days in December.

Accidents reported Frequency
0 - 5 18
6 - 10 4
11 - 15 6
16 - 20 3

Estimate the mean.
Give your answer rounded to 1 DP.

Answers

Answer 1

Answer:

31/20 = 1.55

1.6

Answer 2

The mean of on road accidents reported to the police for the days in December is 6.7

What is the meaning of mean ?

In a group of numbers, the mean is the average or most common value. It is a measure of central tendency of a probability distribution along the median and mode in statistics.

It is given in the question about the  information on road accidents reported to the police for the days in December.

Mid point of (0-5) = 2.5

Mid point of (6-10) =8

Mid point of (11-15)=13

Mid point of (16-20) = 18

Mean = (∑Midpoint * frequency )/ (∑ frequency)

[tex]\rm Mean = \dfrac{2.5\times18+8 \times4+13\times6+18\times3}{18+4+6+3}\\\\\\\rm Mean = \dfrac{209}{31}\\[/tex]

Mean = 6.74

Mean = 6.7

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Related Questions

Will give brainliest, like, comment, and 5 points the the best answer
The answers you can choose from are proportional or non-proportional.
Could you please answer this:

Answers

Answer:  

Fractions with variablies are proportional anyway, and any number is proportional as long as it has the same ratio.  

 

Step-by-step explanation:

Use the distributive property to write an equivalent expression.
2(n+8p)

Answers

Answer:

2n+16p

Step-by-step explanation:

which ordered pairs is a solution to the equation y=4x-17? (it’s more then one )

Answers

Answer:

(1,-13) (4,-1) (7,11)

Step-by-step explanation:

Those are all the correct order pairs!!

hope this helps!

Given h(x) = -4x – 5, solve for x when h(x) = 7.

Answers

Answer:

x=-3

Step-by-step explanation:

h(x)=7

-4x-5=7

-4x=12

x=-3

Answer: -3

Step-by-step explanation:

dont be shy answer my math equation.

Where would you locate √6 on a number line?

between 2.0 and 2.25
between 2.25 and 2.5
between 2.5 and 2.75
between 2.75 and 3.0

Answers

Answer:

i wanna say 2.25 and 2.5 but I'm not entirely sure

For the given functions f and g, complete parts (a)-(h). F
f(x) = 5x + 8; g(x) = 7x-2

Answers

Answer:

9

Step-by-step explanation:

use math and add way after it

u welcome does work for u

Andy drove 840 miles in 12 hours. How far could he drive in 1 hour?

Answers

Answer:

70

Step-by-step explanation:

Divide 840 by 12 and you get 70 miles.

Hey, he's speeding! I should give him a ticket.

Can I have brainlliest?

Hope it helped.

How Do I do this word problem

Answers

Answer:

just do what it says

Step-by-step explanation:

A DVD normally costs $20. The price changes to $9.50 when it goes on sale. How much is the percent of change on the DVD

Answers

Tbh it might be 55 percent

What is 0.23 divided by 0.7?

Answers

0.328571428571

ly guys <3

easyyy, put it into a calculator and u get 0.32857

You start at (4, 4). You move right 1 unit and down 4 units. Where do you end?

Answers

Answer: (5,0)

Step-by-step explanation:

Answer:

You would end at (5,5)

On the the grid or your platform I believe

round 4.30132 to the nearest thousandth

Answers

The answer would be 4.301

Answer:

4.301

Step-by-step explanation:

this month, Carla caught the following fish in lake George: 24 trout, 41 sunfish, 12 perch, and 23 bluegills. If Carla catches another fish this month , what's the probability of her catching a trout

Answers

Answer:

I believe the answer is about 1/2!

Step-by-step explanation:

I don't have a step-by-step but when I took a test this question was on it and I got the question right by putting about 1/2!

The probability of her catching a trout is 6/25

What is probability ?

Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.

According to the question

based on given condition , formulate

24 ÷ (23 + 12 + 24 + 41)

Calculate sum or difference = 24/23 + 12 + 24 + 41

Calculate sum or difference = 24/59 + 41

Calculate sum or difference = 24/100

Reduce the fraction = 6/25

Hence, the probability of her catching a trout is 6/25

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What does the - 8 do in the function k(x)?

k(x) = x^2 - 8

Answers

Answer:

the negative 8 is the y-intercept of the equation. This means that this is y value of where 0 is on the x-axis. The point for the y-intercept is (0,8)


Write the first 4 terms of the sequence.
f(1) = 2 and f(n) = f(n - 1) + 2 for each whole number n greater than 1.
A 1,3,5, 7
B) 2,4,6,8
C) 1,2,3,4
D) 2,3,4,5

How do I write the First 4 terms so I can solve for the answer?

Answers

Answer:

Use the given functions to set up and simplify

7B.4=f(1)=2=Always(true)n=Always(true)1A⋅1=A3=A5=A7B=A

Step-by-step explanation:

please help!!!!!!!!!!!!​

Answers

I Did This And I Somehow Came Out To B. So B I Guess Sorry if Im Wrong

What is -11 x -8?


I suck at math :(

Answers

i didnt see the - on the 11 and 8 my bad :(

Answer:

88?

Step-by-step explanation:

The diagram at the right shows a path through a garden.

The approximate length of the path, p, can be found with the formula

[tex]} p^{2}[/tex] =[tex]8^{2}[/tex] + [tex]10^{2}[/tex]

Which of the following measures is closest to the length

of the path?

A. 10 m

B. 12 m

C. 13 m

D. 18 m

Answers

Answer: B  about 13 m

Step-by-step explanation:

Calculate 8²  = 64  and 10² = 100  Add to get 16

Then get √164 = =12.80624847

Round up to 13.  

6. Claire buys DVDs online. Each DVD that she orders costs $15 and shipping for her order is $10.
Claire can spend no more than $100. How many DVDs can she buy?

Answers

Answer:

5 dvds

Step-by-step explanation:

15 per dvd

15x+10 and then it has to be less then 100

I think the answer would be 5:)

solve -3/8y=-24 urgent it’s a timed test!

Answers

Answer:

y = 64

Step-by-step explanation:

-3/8y = -24

-3y = -24 (8)

y = -192 / -3

y = 64

LOOK AT THE IMAGE ABOVE & SOLVE IT BY SHOWING FULL STEPS! I will mark you brainlist if you show full steps

Answers

Answer:

Area of original shape: x1

Area of zoomed shaped: x4

Perimeter of original shape: x1

Perimeter of zoomed shaped: x2

Step-by-step explanation:

Since the image is zoomed in by 2, it means that all measurements are doubled. When calculating the area, the zoomed shape had an area 4 times greater than the original shape! With perimeter, instead of the same multiplier, the perimeter of the zoomed shape was only doubled of the original shape.

Plz help! Are they right? The questions are below!

Answers

Answer:

The sencond is wrong but the first is good

Step-by-step explanation:

There were 3 boys for every 4 girls how many student i all went the trip

Answers

Answer:

7

Step-by-step explanation:

Answer:

it depend on how many students there were in total so you can know how many boys and girls

Step-by-step explanation:

please help me with this it's worth 80 points
and please show all work
3x - 4 + 6x = -31

17 = 3x - 10

2x + 6 = 4x - 8

17x - 5(3x - 11) = 41

5x - (3x - 6) = 18

6x - 3(4 - 5x) = 30

x - (-5) = 7

Answers

This is a lot of questions-

I did them all on a calculator.

1.)

3x - 4 + 6x = -31

3x + 6x - 4 = -31

9x - 4 = -31

9x = -27

Answer: x= -3

2.)

17 = 3x - 10

3x -10 = 17

-10 = -10

3x = 27

divide both sides by 3

Answer: x= 9

3.)

2x + 6 = 4x - 8

-6 = -6

2x = 4x -14

-4x (both sides)

-2x = -14

divide both sides by -2

Answer: x = 7

4.)

17x - 5(3x - 11) = 41

2x +55 = 41

-55 (both sides)

2x = -14

divide 2 both sides

Answer: x = -7

5.)

5x - (3x - 6) = 18

2x + 6 = 18

-6 both sides

2x = 12

divide both sides by 2

Answer: x = 6

6.)

6x - 3(4 - 5x) = 30

21 - 12 = 30

+12 boh sides

21x = 42

divide both sides by 21

Answer: x = 2

7.)

x - (-5) = 7

x + 5 = 7

-5 both sides

Answer: x = 2

Debbie can type 17 words in 20 seconds. What is her rate in words per minute?

Answers

34 words per minute

Which is the first step in solving
X-2 = 2?

Answers

Answer:

The first step is to find a number that when subtracted from 2 gives you 2.

Step-by-step explanation:

The algebraic part of this problem would be to add the -2 (adding 2 to both sides) to both sides, so

first x-2=2, then x-2(+2)=2(+2)  which would give us,

x=4

*note: the parenthesis are just to show that we are adding the 2, to make it more understandable.

V I’mhjhvcbjvcvjhvvvggujvvcghhhvcccgggghh

Answers

Answer:

the like terms were not grouped together.

I need help with something maybe if I can send a picture of it it will be easier​

Answers

Answer:

sure send it and I will do my best to help you..

Complete the following problems.
Amy has $50 in her lunch account. Amy spends $3 a day for lunch. Amy's mother receives a notification when Amy's
account balance reaches $5 or lower. How many lunches can Amy purchase until her mother receives a notification? And what is the equation in slope intercept form

Answers

Answer:

Amy can purchase up to 14 lunches until her mother receives the notification. When she has the 15th lunch, the notification will be sent.

Step-by-step explanation:

The balance Amy has in her lunch account is a function of the number of lunches she has consumed.

The initial balance is $50 and it decreases by $3 for every lunch Amy has. Thus, the function that models the balance in her lunch account is:

[tex]B(x)=50-3x[/tex]

Where x is the number of lunches.

Her mother receives a notification when the balance goes at $5 or lower, thus the condition that triggers the notification is:

[tex]B(x) \le 5[/tex]

Or, equivalently:

[tex]50-3x\le 5[/tex]

Subtracting 50:

[tex]-3x\le 5-50[/tex]

[tex]-3x\le -45[/tex]

Multiplying by -1 (and flipping the sign):

[tex]3x\ge 45[/tex]

Solving:

[tex]x\ge45/3[/tex]

[tex]x\ge 15[/tex]

Amy can purchase up to 14 lunches until her mother receives the notification. When she has the 15th lunch, the notification will be sent.

3/4(x+8) > 1/2(2x+10)

Answers

3x/4+6 and x+5
Pls mark brainliest
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