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
NISA [10]
3 years ago
8

PLEASE HELP ME WITH THIS I DONT UNDERSTAND I WILL MARK YOU AS BRAINLIEST IF YOU ANSWER CORRECTLYY PLS AND TY​

Mathematics
1 answer:
kherson [118]3 years ago
8 0

Answer:  To establish the strength of a linear association, first compute the correlation coefficient between the variables involved. The, examine the absolute value of the coefficient. A strong relationship has an absolute value of close to 1 (or approaching 1) while a weak relationship has an absolute value close to 0 (or approaching zero).

The data points will be clustered more tightly around the trend line if there is a weak linear association and less tightly if there is a strong one.

hope it helps

take care

Step-by-step explanation:

You might be interested in
. The manager of a local small bank wants to estimate the average daily balance of all the checking accounts. Assume a random sa
MaRussiya [10]

Answer:

A 95% confidence interval estimate of the population mean (average) daily balance of all the checking accounts is $274.32 to $331.68

Step-by-step explanation:

Consider the provided information.

A random sample of 21 checking accounts at the bank are chosen,

That means n=21

df = n-1

df = 21-1=20

We need to  Construct and interpret a 95% confidence interval.

Determine t critical value for 95% confidence interval.

0.95=1-α

α=0.05

The sample size is small and it is a two tailed test.

From the t value table confidence interval is 2.086

An average daily balance is $303 and a standard deviation of $63.

CI=\bar x\pm t_c \times \frac{s}{\sqrt{n}}

Substitute the respective values.

CI=303\pm 2.086 \times \frac{63}{\sqrt{21}}

CI=303\pm 28.68

CI=274.32\ or\ 331.68

A 95% confidence interval estimate of the population mean (average) daily balance of all the checking accounts is $274.32 to $331.68

3 0
4 years ago
Which of these numbers is a rational number?
Ymorist [56]

Answer:

the answer is A and C

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Students were surveyed about their favorite colors 1/4 of the students preferred, red 1/8 of the students preferred blue and 3/5
Scrat [10]
Let x be the total number of students.

The total of red + blue = x/4 + x/8
The remaining will be : x - x/4 -x/8
But we know the green at 3/5 of the remaining, so the green = 3/5(x - x/4 -x/8)
We also know that 3/5(x - x/4 -x/8) = 15
Solve this equation: and you will find x = 40 (number of students)

8 0
4 years ago
Please help
Veronika [31]

Answer:

Step-by-step explanation:

hello :

D: (x + 9)2 + (y + 4)2 = 5

8 0
3 years ago
a shipement of 14 microwave ovens contains six defective units A vending company has ordered 4 of these units and selection will
kupik [55]

Answer:

The probability that all 4 units are good is 10.66%.

Step-by-step explanation:

Given that a shipement of 14 microwave ovens contains six defective units, and a vending company has ordered 4 of these units and selection will be random, to determine what is the probability that all 4 units are good the following calculation must be performed:

14 - 6 = 8

8/14 x 8/14 x 8/14 x 8/14 = X

0.5714 x 0.5714 x 0.5714 x 0.5714 = X

0.1066 = X

0.1066 x 100 = 10.66

Therefore, the probability that all 4 units are good is 10.66%.

3 0
3 years ago
Other questions:
  • 4x2 + 9y2 = 72<br> 2x - y = 4<br> <br> Which of the following is a solution to the system shown?
    15·1 answer
  • Hal bought 2 gallons of juice at the store. How many quarts of juice did Hal buy? (1 gallon = 4 quarts)
    7·2 answers
  • I need help, can someone please explain this step by step.
    7·1 answer
  • Please help this math problems
    9·1 answer
  • What are the lengths of the legs of a right triangle in which one acute angle measures 19o and the hypotenuse is 15 units long?
    5·1 answer
  • Please help it’s really hard for me
    6·2 answers
  • What is the scale factor????
    12·1 answer
  • Which table represents a function
    10·1 answer
  • 8 minus some number divided by 3 equals 6. Find the number
    5·1 answer
  • Does the point (5, 3) satisfy the inequality y &lt; 9x + 8?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!