1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
balandron [24]
1 year ago
8

The following table presents the time taken to review articles that were submitted for publication to a particular journal durin

g a recent year. A few articles took longer than 6 months to review; these are omitted from the table. Consider the data to be a population.

Mathematics
1 answer:
belka [17]1 year ago
7 0

A) Variance = 10.24

B) Standard Deviation = 3.2

One of the measurements of dispersion is the standard deviation, which is exclusively used for quantitative data. It aids in determining if the data's mean is a suitable measurement to reflect the core value.

TIME         FREQUENCY(f)  MIDPOINT(x)    d    d²     fd              fd²

0 - 0.9         43                          0.45             -3     9     -129            387

1.0 - 1.9         17                           1.45              -2    4     -34                68

2.0 - 2.9       19                            2.45             -1     1       -19               19

3.0 - 3.9        18                            3.45             0     0       0                  0

4.0 - 4.9        14                            4.45              1      1        14               14

5.0 -5.9         16                            5.45              2     4        32             64                            

∑f = 127                                                              

∑fd = -136  

∑fd² = 552

d = \frac{x - 3.45}{1}

Standard Deviation = \sqrt \frac{fd^{2} }{N} - \sqrt \frac{(fd)^{2} }{N} * i

\sqrt \frac{552}{127} -\sqrt (\frac{-136}{127})^{2}   * 1

√4.35 - √1.15

Standard Deviation = 3.2

(SD)² = (3.2)² = 10.24

Variance = 10.24

To know more about standard deviation, refer to this link :

brainly.com/question/12402189

#SPJ1

You might be interested in
A particular telephone number is used to receive both voice calls and fax messages. Suppose that 25% of the incoming calls invol
Andre45 [30]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
A city official would like to know if there is public support for increasing funding for arts programs. To collect data, the cit
maw [93]

Answer:

I think the answer is either c or d. but i think your answer is good

Step-by-step explanation:

7 0
3 years ago
Which of the following ordered pairs could be placed in the table and still have the relation qualify as a linear function? (4 p
Lerok [7]

Answer:

(2, 7)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Tricia recorded the number of pets owned by each of her classmates. these data points represent the results of her survey. 0, 3,
SOVA2 [1]

The dot plot of the data recorded by Tricia about number of pets owned by each of her classmates looks like scattered and some points are in one line.

Given number of pets owned by each of her classmates are: 0, 3, 2, 4, 1, 0, 0, 3, 2, 1, 2, 1, 1, 3, 4, 2, 0, 0, 1, 1, 1, 0, 3.

We have to create dot plot of the data given in the question.

Firstly we have to give a code to each value which represents friend of Tricia.

A dot plot is a statistical chart which have points but they are presented in dot form. Each dot shows a value .There are two common, yet different versions of the dot chart.

After giving codes the table will look like:

Friend                       Number of pets

1                                      0

2                                      3

3                                      2

4                                      4

5                                      1

6                                      0

7                                      0

8                                      3

9                                      2

10                                    1

11                                    2

12                                    1

13                                    1

14                                    3

15                                    4

16                                    2

17                                    0

18                                    0

19                                    1

20                                    1

21                                    1

22                                    0

23                                    3

Learn more about dot plot at brainly.com/question/15853311

#SPJ4

8 0
2 years ago
Help me solve this equation!<br> 4x + 10 = -2y<br> Remember to use the y = mbx+b formula!
Black_prince [1.1K]
Y=-2x-5
You can divide by -2 on both sides of the equal sign getting the answer above.
5 0
3 years ago
Other questions:
  • A company's profit is described by the equation P(x)=-5x^2+300x+15,000
    7·2 answers
  • PLEASE HELP what is 12% of 100?
    11·2 answers
  • Brent’s after-school game club has 12 members from which a six-member team is created. Miguel’s after-school sports club has 10
    15·2 answers
  • EStimate how many 12-ich rulers will be about the same length as a sheet of paper
    11·1 answer
  • What is the median of the following data set? {3, 4, 2, 8, 5} (1 point)
    10·2 answers
  • How much does mike charge a new customer to ship a package that weighs 50 pounds ? He chargers $40 per pound.
    14·1 answer
  • At 3pm the temperature was 9 degrees .By 11pm ,it had dropped 31 degrees .What was the temperature at 11pm
    11·1 answer
  • Please help me with this question guys, I’m going to fail:(
    13·1 answer
  • Calculate the new area using the scale factor of 3
    13·1 answer
  • HELP PLEASE I’ll make you brilliant
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!