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
nalin [4]
3 years ago
12

2. A teacher asked his class of 20 students, "What is your age? Their responses are shown in the dot plot below.

Mathematics
2 answers:
Karolina [17]3 years ago
8 0

Answer:

Yes, average does represent the centre of this data.

Average = 15.9

Step-by-step explanation:

As this question is not complete and not correctly written. Let's try to find an answer for this question.

Total number of Students = 20 = n

and we are given this data:

14, 15, 17, 18, 16.

which is just five entries and total number of students are 20. 15 entries are missing in this questions. So, let's add our own values into this question.

New set of entries for 20 students.

1. 14

2. 15

3. 17

4. 18

5. 16

6. 19

7. 17

8. 16

9. 17

10. 17

11. 15

12. 20

13. 14

14. 17

15. 18

16. 19

17. 13

18. 20

19. 17

20. 16

So, let's calculate the average of these numbers.

Average = Sum of all entries/ Total number of entries.

Average = 318/20

Average = 15.9

So, the average age of all the students of class is 15.9.

Let's calculate median:

For median , data must be arranged in a order from least to greatest number. Median is a number from that data which is at half way. In case of odd numbers, it is easy to identify median because there is only one number. and in case of even numbers, median is the average of the two middle numbers. So, here we have even numbers and median is the average of two middle numbers = 17 + 17/2 = 17

Median = 17

Yes, average does represent the centre of this data.

olganol [36]3 years ago
5 0

Answer:

a) Mean = 16.09

Median = 16

Mode is highest frequency = 16

Range = highest number - lowest number

Range = 19 - 14 = 5

b) median

Step-by-step explanation:

The mean = [(4×14) + (5×15) + (6×16) + (3×17) + (4×19)] ÷ 22

Mean = (56+75+96+51+76)/22

Mean = 354/22

Mean = 16.09

Median = 16

Mode is highest frequency = 16

Range = highest number - lowest number

Range = 19 - 14 = 5

Measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set of data.

The mean is most likely the measure of central tendency that is very popular with, but in this question, median best represent the center for this data because of its single value.

You might be interested in
I request assistance.
timofeeve [1]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
The sum of the solutions of (12x - 4) = 8 is__
Natalija [7]

Answer:

Solution,

12x-4=8

or,12x=8+4

or,12x=12

or,x=12/12

therefore,x=1

hope it helped you

5 0
3 years ago
You live on a triangular piece of land with a base of 121 yards and
morpeh [17]

The area of triangular piece of land in acres is 1 acre.

Further Explanation:

In order to find the area of the triangular piece of land in acres we have to find the area in yards

<u>Given:</u>

Base = 121 yards

Height = 80 yards

Area = \frac{1}{2} * base * height\\ = 0.5 * 121 *80\\=4840\ square\ yards\\Square\ Yards\ in\ one\ acre=4840\ square\ yards\\So,\\Area\ in\ acres = \frac{4840}{4840} \\= 1\ acre

So, the area of triangular piece of land in acres is 1 acre.

Keywords: Area of triangle, conversion from yards to acre

Learn More at:

  • brainly.com/question/4054269
  • brainly.com/question/4354581
  • brainly.com/question/4459688

#LearnwithBrainly

6 0
2 years ago
There are 8 blue candies, 5 pink candies, 1 white candy, and 6 green candies in a candy jar. You reach in, without looking, and
kupik [55]

Answer:

30%

Step-by-step explanation:

Find the total number of candies in the jar.

8 + 5 + 1 + 6 = 20

The probability of choosing a green candy is 6/20 = 3/10 = .3 = 30%

5 0
3 years ago
The first step to solve the equation StartFraction x over 4 EndFraction minus three-fourths = 16 is shown below.
irina1246 [14]
Ok so the first step to solve it is subtraction then it’s multiplication then additions
4 0
2 years ago
Other questions:
  • 20 points<br> What is the value of p in the linear equation ?<br> −4<br> −2<br> 2<br> 4
    14·2 answers
  • Order of Operations- -6+(-30) divided by 5-(-2). Explain step by step
    6·1 answer
  • Find each measurement to the nearest tenth use 3.14 for pi. r=_ ; d=_ ; C= 17.8 m
    14·1 answer
  • Is apples cost $3.50 per pound how much would one and 1/2 pounds cost
    11·1 answer
  • write an equation of a line that is perpendicular to the given line and that passes through the given point (4,-6); m=3/5
    12·1 answer
  • What is the sum of prime numbers between 110 and 125?​
    11·2 answers
  • What percent of 84 is 12? Round to the nearest whole number.
    12·1 answer
  • Which number is not a solution to the inequality below? x&lt;15 A -6 B -2 C 11 D 17 Please help! Thanks
    11·1 answer
  • Maria has 6 ⅛ cups of flour, but only needs 4 ¼ cups for her recipe. How much will she have left​
    15·2 answers
  • 1+1
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!