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
konstantin123 [22]
3 years ago
11

The following are score earned by 15 college students on a 20-point math quiz. (a) calculate the mean, median, and mode scores.

(b) identify which measure in part (a) is most representative of the data. 0, 2, 3, 12, 12, 13, 14, 14, 15, 15, 18, 18, 18, 19, 20 (a) the mean score is ( ).

Mathematics
1 answer:
Softa [21]3 years ago
8 0

Answer:

(a) 12.87; 14; 18; (b) median  

Step-by-step explanation:

(a) Statistics

(i) Mean

The mean is the sum of all the data points divided by the number of points.

\begin{array}{rcl}\text{Mean} & = & \dfrac{0 + 2 + 3 + 12 + 12 + 13 + 14 + 14 + 15 + 15 + 18 + 18 + 18 + 19 + 20}{15}\\\\& = & \dfrac{193}{15}\\\\& = & \mathbf{12.87}\\\end{array}

(ii) Median

The median is the middle value in your list of observations.

0, 2, 3, 12, 12, 13, 14, 14, 15, 15, 18, 18, 18, 19, 20

Median = 14

(iii) Mode

The mode is the value that appears most often in your list of observations.

0, 2, 3, 12, 12, 13, 14, 14, 15, 15, 18, 18, 18, 19, 20

Mode = 18

(b) Most representative measure

The mean is dragged down by three low values. The median is the measure that is most representative of the data.

The histogram below shows the distribution of your data.

You might be interested in
Help!!!i never learned this
andre [41]
I hope this helps you



perpendicular lines slopes multiplication -1


M1×M2= -1


1/2×M2= -1


M2= -2
5 0
3 years ago
What is the measure of ABC?
lesantik [10]

Answer:

Step-by-step explanation:

85 degrees. Step-by-step explanation: From the diagram, it is clearly visible that the angle ∠ABC is formed by intersections of two chords AE and CD of the circle.

8 0
2 years ago
Read 2 more answers
Any one 100% kno these two answers
liubo4ka [24]
Answer:

The first question would likely be y=10.
The second question would likely be x=20.
6 0
3 years ago
Choose the slope-intercept form of 3x + 2y = 5
lianna [129]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
the bottom of a ladder must be placed 10 feet from a building. The ladder is 26 feet. How far above the ground does the ladder t
Sauron [17]

Answer:

<em>The ladder touches the wall at 24 feet from the ground.</em>

Step-by-step explanation:

The wall of the building, the ground, and the ladder form a right triangle, whose longer side is the length of the ladder.

In any right triangle, we can apply Pythagora's theorem to find any missing side length.

The ladder is 26 feet in length, the distance from the bottom of the ladder and the building is 10 feet. Calling H to the distance above the ground where the ladder touches the wall, then:

26^2=10^2+H^2

Calculating:

676=100+H^2

Solving:

H^2=676-100

H^2=576

H=\sqrt{576}

H=24 feet

The ladder touches the wall at 24 feet from the ground.

8 0
3 years ago
Other questions:
  • Graph on a number line. −6 over 7
    6·1 answer
  • 3x-2 less than or equal than 7
    11·1 answer
  • Simplify: 5y-3/12y - y-5/20y:<br><br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7B5y-3%7D%7B12y%7D%20-%5Cfrac%7By-5%7D%7B20y%7D"
    11·1 answer
  • How old am I if 400 reduced by 2 times my age is 204
    5·1 answer
  • A commercial laundry charges $5.25 per load. You have $31.50. Write and solve an inequality to find the greatest number of loads
    5·1 answer
  • What are the solutions to the equation?<br> y2 + 6x = 40
    14·1 answer
  • Please help!
    14·2 answers
  • What is the volume of a cylindrical bucket that is 35 cm tall and has a base with a diameter of 21 cm?
    10·1 answer
  • I NEED HELP PLEASE!!!
    7·2 answers
  • Solve each of the following quadratic equations<br><br> 3x=0.5x^2<br><br><br> 0=5x^2-2x+6
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!