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
alexdok [17]
4 years ago
7

Complete the following sentence. The coefficient of determination between the dependent variable, TEST SCORE, and the independen

t variable, HOURS SPENT STUDYING, equals 043. This means that:_________.
a. variation in the variable, HOURS SPENT STUDYING explains 43% of the variation in the variable. TEST SCORE
b. variation in the variable, TEST SCORE, explains 43% of the variation in the variable, HOURS SPENT STUDYING
c. the correlation between HOURS SPENT STUDYING and TEST SCORE equals 0.43
d. the correlation between HOURS SPENT STUDYING and TEST SCORE equals 0.57,
Mathematics
1 answer:
amm18124 years ago
8 0

Answer: a. variation in the variable, HOURS SPENT STUDYING explains 43% of the variation in the variable. TEST SCORE

Step-by-step explanation:

The coefficient of determination is denoted by R square is the proportion of the variance in the dependent variable that is predictable from the independent variable.

Given:  dependent variable = TEST SCORE

independent variable = HOURS SPENT STUDYING

coefficient of determination = 0.43

That means variation in the variable, HOURS SPENT STUDYING explains 43% of the variation in the variable. TEST SCORE.

Hence, the correct option is a.

You might be interested in
If 5 of 22 students are hearing impaired - what fraction of students are hearing impaired
Shtirlitz [24]
5/22 the number you get from the total becomes the numerator and the total amount becomes the denominator
7 0
4 years ago
What is the value of x​
tatiyna

Step-by-step explanation:

2x = x + 11

x = 11

4 0
3 years ago
Read 2 more answers
Draw an angle XYZ of 88 degree . Construct the angle bisector of
sergejj [24]

Answer:

Step-by-step explanation:

An angle is formed where two or more lines meet. It is measured in degrees. And an angle bisector is a straight line that divides an angle into two equal parts.

Given: <XYZ = 88^{0}.

Construction: A bisector of <XYZ.

The construction can be seen in the attached diagram.

8 0
3 years ago
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate
Leviafan [203]

Answer:

Probability of having student's score between 505 and 515 is 0.36

Given that z-scores are rounded to two decimals using Standard Normal Distribution Table

Step-by-step explanation:

As we know from normal distribution: z(x) = (x - Mu)/SD

where x = targeted value; Mu = Mean of Normal Distribution; SD = Standard Deviation of Normal Distribution

Therefore using given data: Mu (Mean) = 510, SD = 10.4 we have z(x) by using z(x) = (x - Mu)/SD as under:

In our case, we have x = 505 & 515

Approach 1 using Standard Normal Distribution Table:

z for x=505: z(505) = (505-510)/10.4 gives us z(505) = -0.48

z for x=515: z(515) = (515-510)/10.4 gives us z(515) = 0.48

Afterwards using Normal Distribution Tables and rounding the values to two decimals we find the probabilities as under:

P(505) using z(505) = 0.32

Similarly we have:

P(515) using z(515) = 0.68

Now we may find the probability of student's score between 505 and 515 using:

P(505 < x < 515) = P(515)-P(505) = 0.68 - 0.32 = 0.36

PS: The standard normal distribution table is being attached for reference.

Approach 2 using Excel or Google Sheets:

P(x) = norm.dist(x,Mean,SD,Commutative)

P(505) = norm.dist(505,510,10.4,1)

P(515) = norm.dist(515,510,10.4,1)

Probability of student's score between 505 and 515= P(515) - P(505) = 0.36

Download pdf
6 0
3 years ago
In winter, a sporting good stores sells 5 times as many snowboards as it as it sells during summer the store sells 132 snowboard
gayaneshka [121]
132 x 5 = 660 (5 times more than in summer)
4 0
3 years ago
Other questions:
  • How do I find the product?
    13·1 answer
  • The area of a square is 25 square inches. What is the perimeter of the square?
    15·1 answer
  • Which expression is equivalent to the given expression using the commutative property of addition.​
    12·1 answer
  • What does it mean to be "certain" to occur?
    13·1 answer
  • On a 4 1 2 hour trip, Leslie drove 2 3 of the time. For how many hours did Leslie drive?
    13·1 answer
  • Sam potter seven plants last weekend. That is three times less than half the plants he wants to pot next weekend. How many plant
    12·1 answer
  • Figure ABCD is a parallelogram.<br>BE<br>(4p + 12)<br>36°<br>What is the value of p?​
    15·2 answers
  • Find the range of the function for the given domain.
    7·2 answers
  • What would the coordinates be if Figure A was dilated to three times the size and reflected across the y-axis?
    6·1 answer
  • 4
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!