Mathematics College

I really need help with this stadistic problem

I Really Need Help With This Stadistic Problem

Answers

Answer 1

Answer:

the mean is 5.8 and the median is 6

Step-by-step explanation:

if you multiply the test scores by their frequencies and then add up all those values, and then divide by the number of test scores, you get 5.8

for the median, you write out all the test scores in order from least to greatest and how many times they appear. then if you go to the middle of that number line, youll find the median

Related Questions

Consider the following time series data. Week 1 2 3 4 5 6 Value 18 12 15 10 18 14 Using the naive method (most recent value) as the forecast for the next week, compute the following measures of forecast accuracy. (a) mean absolute error MAE = (b) mean squared error MSE = (c) mean absolute percentage error (Round your answer to two decimal places.) MAPE = % (d) What is the forecast for week 7?

Answers

Answer:

(a) MAE = 5.20

(b) MSE = 10

(c) MAPE = 38.60%

(d) Forecast for week 7 = 14

Step-by-step explanation:

Note: See the attached excel for the calculations of the Error, Error^2, and Error %.

(a) mean absolute error

MAE = Total of absolute value of error / Number of observations considered = |Error| / 5 = 26 / 5 = 5.20

(b) mean squared error

MSE = Total of Error^2 / Number of observations considered = Error^2 / 5 = 150 / 5 = 10

(c) mean absolute percentage error (Round your answer to two decimal places.)

MAPE = Total of Error % / Number of observations considered = Error % / 5 = 193.02 / 5 = 38.60%

(d) What is the forecast for week 7?

Since the forecast is based on the naive method (most recent value), the forecast for week 7 is value for week 6. Therefore, we have:

Forecast for week 7 = 14

Solve for x then find each angle measure

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I’m confused which one and I’m suppose to help you with and btw the picture is kinda blurry

is {(98,6),(99,0),(100,7)} a function?

Answers

Answer:

Yes , this is the function

Step-by-step explanation:

Because every domain has their only one image

A line passes through the point (6,-4) and has a slope of 3/2 I Write an equation in point-slope form for this line.​

Answers

Answer:

y-4=3/2(x+4)

Step-by-step explanation:

If you plug the numbers into the equation (y-y1=m(x-x1)), you get y-4=3/2(x+4).

HOPE THIS HELPS

What is the slope of the line in the graph?

Answers

the slope is 1

the equation of the line is y=x+1

giving brainliest !!!!!!!

Answers

Answer:

368

Step-by-step explanation:

WILL MARK BRAINLEST
This table shows a proportional relationship. x −4 −2 0 2 4
y −14 −7 0 7 14
Which ordered pair could also belong to this relationship?
A. (−6, 21) C. (−1, −3)
B. (1, 3) D (6, 2)

Answers

Answer:

D (6, 21)

Step-by-step explanation:

Since the ratio of the corresponding values of x and y given in the table is 2 : 7

So, 6/ 21 = 2/7 = 2: 7

Thus, D (6, 21) is the correct answer.

I NEED HELP PLEASE NO LINKS OR U WILL GET REPORTED. I WILL GIVE BRAINLY THING, make sure you are correct ​

Answers

Answer:

D

Step-by-step explanation:

French colonies were north of the US. Portugal only owned Brazil, and Germany had no colonies.

What is equivalent to x+y+x+y+3(y+5)?

Answers

Answer:

this simplified would be 2x+5y+15

Step-by-step explanation:

HELP ME ASAP!!!!! Jack bought an automatic water bottle feeder for his cat. A diagram of the bottle is shown below. What is the maximum amount of water the bottle can hold?

​

Answers

Answer:

16 in

Step-by-step explanation:

A bag contains 3 teal balls and 2 magenta balls. Blake picks one ball, replaces it, and then picks another ball. What is the probability that both balls are teal?


4/25


9/25


3/10


1/10

Answers

3/10

Plz give brainliest


A large water tank holds 295 liters of water.
A second large tank holds 318 liters of water.
How many liters of water are in both tanks?

Answers

613 liters total. 295+318=613 liters

theo is paid £12.50 per hour. how much will he be paid for working 6 hours and 30 minutes?

Answers

Answer:

he pay 12.50 in 60 min

Step-by-step explanation:

he pay x in 390 min

x=(12.50 x 390)÷ 60

x=4875 ÷60

x=81.25 £

he pay finally £81.25

f a circle has a diameter of 13 dm, then the radius of the circle is _____ dm.

Answers

Answer:

Step-by-step explanation:

What is the radius of a circle whose diameter is 13 units? This means that the diameter is double the length of the radius. To find the radius, do: ∴, the radius is 13 2 units or 7.5 units.

Answer:

6.5dm

Step-by-step explanation:

Diameter is twice radius

radius =13÷2

radius =6.5dm

Help with math please, just 7 and 9. Please explain thanks.

Answers

Answer: #7  x=16  #9 x=27

Step-by-step explanation:

#7

This is an isosceles triangle, so the angles formed at the base of the congruent sides are equal.

5x-7=8x-55

48=3x

16=x

#9

This is an equilateral triangle (if 2 angles are 60, the third has to be 60 as well) so the sides are equal

7x+19=11x-89

108=4x

27=x

Pick a random answer

The lateral surface area of a triangular prism is 120 in?. If the perimeter of the base is
20 inches, what is the height?

Answers

Answer:

6

Step-by-step explanation:

If angle 1 & 2 are complementary angles, they add up to 90 degrees.

A. True

B. False

Answers

Answer:

true lol

Step-by-step explanation:

Write the ratios for sin X and cos X.

Answers

9514 1404 393

Answer:

  sin(X) = (√119)/12

  cos(X) = 5/12

Step-by-step explanation:

The mnemonic SOH CAH TOA can help you remember the relevant ratios.

  Sin = Opposite/Hypotenuse

  sin(X) = YZ/YX

  sin(X) = (√119)/12

__

  Cos = Adjacent/Hypotenuse

  cos(X) = XZ/XY

  cos(X) = 5/12

Find the probability of each event.
1) An archer has a 25% chance of hitting the
bullseye on a target. What is the
probability that the archer will hit the
bullseye exactly three out of five times?

Answers

Answer: Don’t listen to the other comment it’s a scam. It’s 15 percent. Or 0.15

Step-by-step explanation:

What is the volume of the square pyramid ?

Answers

Answer:

Step-by-step explanation:

The answer is 4230

Jack invested $2,900 in an account paying an interest rate of 8 % compounded
annually. Anthony invested $2,900 in an account paying an interest rate of 81%
compounded continuously. After 10 years, how much more money would Anthony
have in his account than Jack, to the nearest dollar?
I don’t understand how to solve.

Answers

Answer:$451

Step-by-step explanation:

What is the fraction equivalent of 430%
NO LINKS. IF WRONG I WILL DELETE.

Answers

Answer:

The answer is 43/10

Hope this helps

I need this plz help

Answers

Answer:

D

Step-by-step explanation:

Its roating clockwise 90 degrees

Put the correct answer for but if I check the answer and the answer is wrong then i´m going to report you!

Answers

The answer should be 400 - 21s= 232

Answer:

It’s C

Step-by-step explanation:

Why because it’s is

Dream should do a facial revile

The bank has 5 Vaults.Each vault contains 5 drawers 5 stacks and $25 what’s in the bank?

Answers

I did 5*5+5+25 an got 55

If cos circle = 2/-5 and tan circle > 0, what is the value of sin circle

Answers

Step-by-step explanation:

hope this help ! have a great day

I NEED HELP PLEASE HURRY

Answers

Answer:

60m2

Step-by-step explanation:

(12x4)+(4x3)=60

Please give brainliest if this helps :)

How many solutions will the equation have?
| x – 2| = 6

Answers

Answer:

2

Step-by-step explanation:

Answer:

2 solutions I believe. 2 different x values.

4. Which of the following indicates the multiplication property of equality when solving Vz= 5?
O A.Y2 = 2(5)
O B.2V) = 5
O C.212) = 2(5)
O D.V2 = 5/2

Answers

Answer:

D. 21.

Step-by-step explanation:

The general form of the equation of a circle is:

(x - a)^2 + (y - b)^2 = r^2  where r is the radius.

Comparing:

(x + 5)^2 + (y + 7)^2 = 21^2

So r^2 = 21^2

making r = √21^2

= 21.

plz make me brainliest

5 oranges are bought for $4.00 and later sold at $0.10 each .find the loss percent.​

Answers

Look up loss percentage calculator

Answer:

3.50 loss of percent

Step-by-step explanation:

loss

------- ×100

c.p.

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