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
miskamm [114]
2 years ago
11

The dot plot shows the number of books lent by a school library during a 10-day period.

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
6 0

The mean absolute deviation of the number of books is 1.84

<h3>How to determine the mean absolute deviation?</h3>

The dot plot of the number of books is in the attached figure.

From the figure, we have:

x      f

1       1

2      2

3      2

4      3

5      1

6     2

7     3

8     1

Start by calculating the mean using:

\bar x= \frac{\sum fx}{\sum f}

So, we have:

\bar x= \frac{1 * 1 + 2 * 2 + 2 * 3 + 3 * 4 + 1 * 5 + 2 * 6 + 3 *7 + 1 * 8}{1 +2+2+3+1+2+3+1}

Evaluate the sum and products

\bar x= \frac{69}{15}

Divide

\bar x= 4.6

The mean absolute deviation is then calculated as:

|\bar x| = \frac{\sum f|x - \bar x|}{\sum f}

So, we have:

|\bar x|= \frac{1 * |1 -4.6|+ 2 * |2 -4.6| + 2 * |3 -4.6|+ 3 * |4 -4.6|+ 1 *| 5 -4.6|+ 2 * |6 -4.6|+ 3 *|7 -4.6|+ 1 * |8-4.6|}{1 +2+2+3+1+2+3+1}

Evaluate the absolute difference

|\bar x|= \frac{1 * 3.6+ 2 * 2.6 + 2 * 1.6+ 3 * 0.6+ 1 *0.4+ 2 * 1.4+ 3 *2.4+ 1 * 3.4}{15}

Evaluate the sum of products

|\bar x|= \frac{27.6}{15}

Divide

|\bar x|= 1.84

Hence, the mean absolute deviation of the number of books is 1.84

Read more about mean absolute deviation at:

brainly.com/question/3250070

#SPJ1

You might be interested in
I need help on this if you know all the answers that would be great but if not I understand I am just struggling
tatyana61 [14]

Answer:

1. 8x+9

2. 3x + 11

3. 9x + 8

4. 11x+9

5. 6x

6. 10x+ 8

7. 7x+7

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Jacintas teacher asks her to find the tangent of angle y. what is her error
LenaWriter [7]

Answer:

what is her error?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
last month Tara work 16.5 hours the first week 19 hours the second week 23 hours the third week 15.75 hours the fourth week she
STatiana [176]
The number of hours, h, Tara plans to work this month are greater than 16.5 + 19 + 23 + 15.75. Therefore, h > 16.5 + 19 + 23 + 15.75.

h > 74.25
7 0
3 years ago
The graph of y = –3x + 4 is:
Savatey [412]
I believe it is c idk the question really doesn't make that much sense
6 0
3 years ago
Read 2 more answers
For the decimal 0.09, (a) write a fraction and (b) write a percent.
sp2606 [1]

Answer:

9/100, 9%

Step-by-step explanation:

0.09 is equal to 9/100

0.09 is equal to 9 percent

3 0
3 years ago
Read 2 more answers
Other questions:
  • 20 points! Please help asap
    9·2 answers
  • 5x+2x this is for basic 9th grade. soo please dont go higher
    8·1 answer
  • Show how you can use repeated subtraction to find 84 divided by 6\
    6·2 answers
  • What are the exclusions of x in the following equation? explain how you found them.
    11·1 answer
  • Toby has already spent 22 minutes on the phone, and he expects to spend 2 more minutes with every phone call he routes. In all,
    5·1 answer
  • The graphs below show measurements from cubes
    7·1 answer
  • Answer if you know asap!
    5·2 answers
  • What is the equation of the line that is perpendicular to -2/5x-7 and passes through (4,-1)?
    11·1 answer
  • Which product is negative?<br>​
    12·1 answer
  • Nine cards are numbered from 1 to 9 and placed in a box. One card is selected at random and not replaced. Another card is random
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!