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frutty [35]
2 years ago
7

Which of the following statements are true? Select all that apply

Mathematics
2 answers:
Delicious77 [7]2 years ago
8 0

Answer:

Option A ,B , C , E are true .

Step-by-step explanation:

Given  : Statements about correlation .

To find : Which statements is true.

Solution : We have given statement about correlation .

Correlation : When two sets of data are strongly linked together we say they have a High Correlation.

Hence, option 1 is true  it show the relation between two quantity variable

Correlation can have a value:  

• 1 is a perfect positive correlation .

• 0 is no correlation (the values don't seem linked at all)

• −1 is a perfect negative correlation

Since , its coefficient lies from -1 to 1.( B  is true )

If  r = 1 then it has strong relationship between two variable  ( C is true)

If r= 0 the it has no relation ( D is false )

If r = -0.9 the it has high negative correlation ( E is true )

Therefore, Option A ,B , C , E are true .

Murrr4er [49]2 years ago
7 0

Answer:


Step-by-step explanation:

the answers are 123

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What does 5 2/3 - 8 5/6 equal?
goblinko [34]

5 2/3 = 17/3 = 34/6

8 5/6 = 53/6

34/6 - 53/6 = -19/6 = -3 1/6


7 0
3 years ago
It is assumed that the test results for a class follow a normal distribution with a mean of 78 and a standard deviation of 36. I
HACTEHA [7]

Answer:

0.7143

- You know the minimum possible grade of the student

- You want to find out the probability that that grade which is greater than 72 is also greater than 84

- Expect the answer to be 0.7143

- The explanation/steps is given below

- The answer seems (and is) reasonable. You only created a new lower limit.

Step-by-step explanation:

Distribution Type: Normal

Mean: 78

Standard deviation: 36

Range of marks: [78 - 36], [78 + 36]  = [42 to 114]

If you know that a student's grade is greater than 72, what is the probability that it's greater than 84?

In this case, the full probability level is between 72 and the upper limit of 114 (instead of between 42 and 114). First, find the fraction of this probability.

[114 - 72] ÷ [114 - 42]  = 42/72  = 0.5833

So, the probability of a student's mark falling between 72 and 114 is 0.5833.

Now making this a whole interval, 114 - 72 = 42

What fraction of this interval of 42 will bear marks between 84 and 114?

[114 - 84]  = 30

30/42  = 0.7143

Because of the first part of the question "If you know (are sure) that a student's grade is greater than 72...", your answer stops at 0.7143, since 72 was used as the lower limit.

8 0
2 years ago
To convert a capacity of 8.7 gallons to quarts which ratio could you multiply by
guajiro [1.7K]
<span>A- 4 quarts over 8.7 gallon 

B- 1 gallon over 4 quarts 

C- 8.7 gallons over 4 quarts 

D- 4 quarts over 1 gallon</span><span>Update: </span><span>Remember that 1 gallon = 4 quarts

</span>
6 0
2 years ago
-1/2x-1/4(10x-9)=-(-7/4x+2)-x
Tems11 [23]

Answer:

x= 17/15

Step-by-step explanation:

−1/2 x- 1/4 (10x−9)=−( -7/4 x+2)−x

8 0
3 years ago
Read 2 more answers
HELP DUE TONIGHT!!!<br> What is 3% of 90???
natali 33 [55]

Answer:

2.7

Step-by-step explanation:

3% × 90 =

(3 ÷ 100) × 90 =

(3 × 90) ÷ 100 =

270 ÷ 100 =  2.7

8 0
3 years ago
Read 2 more answers
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