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DedPeter [7]
3 years ago
10

If the correlation coefficient is .87, is its relationship considered to be strong positive,weak positive,strong negative,weak n

egative or no correlation
Mathematics
1 answer:
myrzilka [38]3 years ago
8 0

Answer:

strong positive correlation co efficient

Step-by-step explanation:

<u>correlation:-</u>

A correlation co-efficient is a numerical measure of some type of correlation,meaning a statistical relationship between two variables.

<u>positive correlation:-</u>

Positive correlation occurs when an increase in one variable increases the value in another.

<u>Negative correlation:-</u>

negative correlation occurs when an increase in one variable decreases the value of another.

Strong positive correlation:-

A co-efficient of correlation of + 0.87 indicates a strong positive correlation between the independent variables

Strong negative correlation:-

A co-efficient of correlation of - 0.87 indicates a strong negative correlation between the independent variables.

Zero correlation:-

There is no relationship is called zero correlation

weak positive correlation:-

A co-efficient of correlation below 0.2 indicates a weak positive correlation between the independent variables.

weak negative correlation:-

A co-efficient of correlation below -0.2 indicates a weak negative correlation between the independent variables.

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Please answer from the image
k0ka [10]

Answer: A

Step-by-step explanation: The answer is A because option B is too much and option C and D is too little. A good website that I reccomend for any type of mathematics is Math, way

THX FOR THE QUESTION

4 0
4 years ago
A biologist who has been studying herd movements in elephants just finished spending
Amanda [17]
We have been given that the speed of elephants is 5km/h east and his speed is 41km/h west.
We have to find after how long will he be 13km from the herd.
Since the biologist is going to the west and the elephants towards east, their relative speed will be calculated by adding their respective speeds.
So final their relative speed will be:
= 5 km/h + 41 km/h
= 46 km/h
Now we want their distance to be 13 km and we have calculated relative speed as 46 km/h.
So using formula :
Speed = Distance / Time,
We calculate time as :
= Distance / Speed
= 13 / 46
= 0.28 hours
= 16.8 minutes.
So after 16.8 minutes, biologist will be 13 km away from the herd.
7 0
3 years ago
Eight more than three times a number is equal to the sum of the number and 10. find the number
Afina-wow [57]

Answer:

8+3x=x+10

2x=2

x=1

The number is 1

6 0
3 years ago
1. Cash is
Drupady [299]

Answer:

Untraceable

Step-by-step explanation:

3 0
4 years ago
a)out of 300 students In a class 60% of the students took physics and 35 students took chemistry and 20% of the students did not
Kipish [7]

Answer:

25 students take both subjects.

Step-by-step explanation:

Solve for 60% of 300 students:

60/100 = x/300

Cross multiply:

60 × 300 = 100 × x

18000 = 100x

Divide both sides by 100:

180 = x

Solve for 20% of 300 students:

20/100 = x/300

20 × 300 = 100 × x

6000 = 100x

60 = x

Solve for the percentage of students in chemistry:

x/100 = 35/300

x × 300 = 100 × 35

300x = 3500

x = 11.66666...7

x = about 11.7%

Find the difference in percentages:

100 - 60 - 20 - 11.7

8.3

8.3% take both subjects

Solve for 8.3% of students:

8.3/100 = x/300

8.3 × 300 = 100 × x

2490 = 100x

24.9

About 25 students

Check your work by adding all the students together (to get to 300):

25 + 60 + 180 + 35

300 students total

This is correct!

7 0
3 years ago
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