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
Inga [223]
2 years ago
9

On an international​ exam, students are asked to respond to a variety of background questions. For the 41 nations that participa

ted in the​ exam, the correlation between the percentage of items answered in the background questionnaire​ (used as a proxy for student task​ persistence) and mean score on the exam was . Does this suggest there is a linear relation between student task persistence and achievement​ score? Write a sentence that explains what this result might mean.
Mathematics
1 answer:
melamori03 [73]2 years ago
7 0

On an international​ exam, students are asked to respond to a variety of background questions. For the 41 nations that participated in the​ exam, the correlation between the percentage of items answered in the background questionnaire​ (used as a proxy for student task​ persistence) and mean score on the exam was 0.793. Does this suggest there is a linear relation between student task persistence and achievement​ score? Write a sentence that explains what this result might mean.

Answer:

There is a strong positive relationship between student task persistence and achievement score

Step-by-step explanation:

The correlation Coefficient score is used to as a numerical measure to show the strength of relationship or correlation between two linear variables. The correlation score ranges from - 1 to + 1. With positive values depicting a positive relationship and negative values exhibiting a negative relationship between the two variables. The closer the value is to 1 or - 1, the stronger the level of correlation. A correlation value of 0, means no relationship exists between the variables.

The correlation score of 0. 793 is both positive and close to 1. Hence, signifying a strong positive relationship.

You might be interested in
three points have coordinates A(-1,2),B(3,10)and C(p,8).Find the value (s) of p if AC is perpendicular to BC.
Reil [10]

Step-by-step explanation:

All steps are in pic above.

<u>N</u><u>o</u><u>t</u><u>e</u><u>:</u><u>i</u><u>f</u><u> </u><u>y</u><u>o</u><u>u</u><u> </u><u>h</u><u>a</u><u>v</u><u>e</u><u> </u><u>a</u><u>n</u><u>y</u><u> </u><u>questions</u><u> </u><u>a</u><u>b</u><u>o</u><u>u</u><u>t</u><u> </u><u>i</u><u>t</u><u> </u><u>l</u><u>e</u><u>t</u><u> </u><u>m</u><u>e</u><u> </u><u>k</u><u>n</u><u>o</u><u>w</u><u>.</u>

4 0
2 years ago
A deck contains 12 blue, 20 yellow, and 18 red cards. Fiona selects a card at random from the deck. What is the probability that
satela [25.4K]

Answer:

What is the probability that it does not rain tomorrow, if the probability that it ... Find the probabilities that a child selected at random, ... (a) A bag contains 2 red marbles, 1 blue marble and 1 yellow marble. ... In February 1995 it rained on 18 days. ... A card is taken at random from a full pack of playing cards with no jokers.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If a pyramid has a height of 10 in. and a base with an area of 90 in² , what is the volume of the pyramid?
harkovskaia [24]

Answer:

300 in³

Step-by-step explanation:

By definition, volume of a pyramid,

= (Base Area x height ) / 3

= (90 x 10) / 3

= 900/3

= 300 in³

3 0
3 years ago
2. Given f(x) = 4x -2 and g(x) = x2 + 1, evaluate:
Novosadov [1.4K]

Answer:

a).

f(5) = 18

b).

g(-3) = 10

c).

g(x-2) = x²- 3

d).

f(g(x)) = 4x²- 1

3 0
2 years ago
A piano teacher gives lessons that are each Three-fourths hour long. How many piano lessons can the teacher fit into a 12-hour w
tino4ka555 [31]

Answer:

16 lessons

Step-by-step explanation:

12 divided by .75 = 16

3 0
2 years ago
Read 2 more answers
Other questions:
  • Can someone help me please!!!
    12·2 answers
  • Please help I’ll give you guys brainiest. !!!!!
    10·2 answers
  • What is the difference the simplest terms 2/3 - 3/5
    7·1 answer
  • The average income, I, in dollars, of a lawyer with an age of x years is modeled with the following function: What is the younge
    5·1 answer
  • A figure made up of a triangle and rectangles is shown.
    12·1 answer
  • Evaluate the expression: 5x – y when<br> x = -4 and y= -2<br><br> marked as brainliest :)
    5·1 answer
  • A. {-3, 7, 8, 12}<br> B. {-8, -3, 5, 7}<br> C. {6, 8, 10, 12}<br> D. {-8, -3, 5, 6, 7, 8, 10, 12}
    9·1 answer
  • Fgddddddddddddddddddddddddfdgb
    5·1 answer
  • According to the website www.olx.uz, monthly rent for a two-bedroom apartment has a mean of
    14·1 answer
  • Help please this makes no sense
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!