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
Scorpion4ik [409]
3 years ago
9

The Table below shows the number of hours ten students spent studying for a test and their svores​

Mathematics
1 answer:
wlad13 [49]3 years ago
5 0

Answer:

Step-by-step explanation:

By using linear regression calculator,

Linear regression equation representing the data set will be,

y = 7.79x + 34.27

Correlation coefficient of the line will be,

R = 0.98

Since, correlation coefficient of the line is (+0.98), relation between the two variables is a strong linear relationship.

That means hours spent studying has the strong relation with test scores obtained.

You might be interested in
Eight percent of all college graduates hired by companies stay with the same company for more than five years. The probability,
Maurinko [17]

Answer:

0.1662 = 16.62% probability that exactly 2 will stay with the same company for more than five years

Step-by-step explanation:

For each graduate, there are only two possible outcomes. Either they stay for the same company for more than five years, or they do not. Graduates are independent. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

Eight percent of all college graduates hired by companies stay with the same company for more than five years.

This means that p = 0.08

Sample of 11 college graduates:

This means that n = 11

The probability, rounded to four decimal places, that in a random sample of 11 such college graduates hired recently by companies, exactly 2 will stay with the same company for more than five years is: the absolute tolerance is +-0.0001

The tolerance means that the answer is rounded to four decimal places.

The probability is P(X = 2). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{11,2}.(0.08)^{2}.(0.92)^{11} = 0.1662

0.1662 = 16.62% probability that exactly 2 will stay with the same company for more than five years

4 0
3 years ago
16oz=1 pound blank ounces equal 4.5 oz
nevsk [136]
.28125 lb? I did 16/4.5 and it equals 3.5555, then we did 1/3.5555 then we got .28125 lb
Not sure what you mean
3 0
3 years ago
Read 2 more answers
Anyone mind helping me ?
storchak [24]

Answer:

<GOJ

Step-by-step explanation:

O is the center of the circle

So central angle is <GOJ

3 0
3 years ago
Which shows the expression below in simplified form?
statuscvo [17]

Answer:

B. 9x10^4

Step-by-step explanation:

\frac{4.5 \times  {10}^{8} }{5 \times  {10}^{3} }  \\  = 0.9 \times  {10}^{8 - 3}  \\  = 0.9 \times  {10}^{5}  \\  = 9 \times  {10}^{4}

5 0
3 years ago
PLEASE HELP.Ill mark you brainliest if its right
Lena [83]

Answer:

Step-by-step explanation:

1.) y= 1/5x - 2

2.) y = 1x + 2

3.) y = 2x + 4

4.) y = 1x + 4

5.) y = 1/3x - 4

6.) y = 1/2x - 3

7 0
3 years ago
Read 2 more answers
Other questions:
  • 45 children attend preschool. The number of two-year-olds is one half the number of three-year-olds. The number of four-year-old
    11·1 answer
  • What us the value of 8 in 281,480, 100
    5·1 answer
  • A​ student's scores on five tests are 98​, 99​, 86​, 89 and 70. What must the score be on the next test so that the average is 8
    6·1 answer
  • There are 16 girls and 20 boys who want to play basketball. If each team must have the same number of girls and boys on it, how
    12·1 answer
  • Tom used 5/8 yards of ribbon to tie weights on the tail of his kite he cut the length of ribbon into equal pieces that were 1/12
    9·2 answers
  • Bob has 12 red cards and 20 green cards. what is the ratio of Bob's red cards to his green cards​
    14·2 answers
  • Florance made an apple pie, she used 7/8 of a tablespoon of cinnamon and 3/4 of a tablespoon of nutmeg
    11·1 answer
  • Is 56:81 and 7:9 equivalent ratios?
    11·1 answer
  • 3. Consider two 'postulates' given below: 0 Given any two distinct points A and B, there exists a third point C which is in betw
    6·1 answer
  • The sum of angles in a triangle is 180 prove
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!