All categories

3 years ago

Which of the following is a description of the data with a correlation coefficient of -0.3?

Mathematics

2 answers:

Volgvan3 years ago

8 0

Answer:

<u>Option B. A description of the data with a correlation coefficient of -0.3 is that it is a low negative correlation.</u>

Step-by-step explanation:

In statistics, the correlation coefficient is a measure of the linear correlation between two variables x and y. This correlation coefficient can be positive, negative or it can show no correlation. A positive correlation indicates that while one data set increases, the other data set does as well, positive correlations a typically show a positive number. A negative correlation means that while one data set increases, the other data set decreases, this type of correlation is typically shown in a line that goes down on the scatter plot. No correlation means exactly that, that the two sets of data are no correlated at all.

Therefore, if the correlation coefficient is -0.3, this indicates that the correlation between the two sets of data is a negative type, as the number negative 0.3 is indicating a line that goes down, instead of a line that goes up.

STALIN [3.7K]3 years ago

6 0

The number is near zero, so it is classified as "low." Its sign is negative, so it is a ...
-low negative correlation

You might be interested in

he table shows the mean number of basketball goals made by four random samples of players from the school team during this year’

Strike441 [17]

The valid prediction for the mean of the population possible using these samples is C. Yes, the variation of the sample means is small

<h3>What is a sample mean?</h3>

It should be noted that a sample mean is an average of a set of data . Also, the sample mean can be used to calculate the standard deviation, central tendency, and the variance of a data set.

The sample mean can be applied to a variety of uses, including calculating population averages.

Here, the sample variance is a measure of the degree to which the numbers in a list are spread out. Here, the numbers given are close to each other.

If the numbers in a list are all close to the expected values, the variance will be small and if they are far away, the variance will be large.

Therefore, the correct option is C.

Learn more about mean on:

brainly.com/question/1136789

#SPJ1

3 0

2 years ago

The question is How long did it take each time 18 liters of water were drained?

SVEN [57.7K]

<h2><u><em>It will take 1/4 of a minute to drain 18 liters</em></u></h2>

<h2><u><em>i took a test wit that question</em></u></h2>

3 0

3 years ago

Sam needs to make a long-distance call from a pay phone. With his prepaid phone card, he will be charged $1.00 to connect and $0

Mademuasel [1]

Answer: The required system of equations representing the given situation is

$y=1+0.5x\\\\y=3+0.25x$

Step-by-step explanation: Given that Sam needs to make a long-distance call from a pay phone.

We are to write a system to represent the situation.

Let x represent the number of minutes Sam talked on the phone and y represents the total amount that he paid for the call.

According to the given information,

with prepaid phone card, Sam will be charged $1.00 to connect and $0.50 per minute.

So, the equation representing this situation is

$y=1+0.5x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Also, if Sam places a collect call with the operator he will be charged $3.00 to connect and $0.25 per minute.

So, the equation representing this situation is

$y=3+0.25x~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

Thus, the required system of equations representing the given situation is

$y=1+0.5x\\\\y=3+0.25x$

3 0

3 years ago

Alice Hill is paid 580 per hour Last week she works 62 hours calculate Alice pay she is entitle to time and a 1/2

Korolek [52]

Answer:

580 x 62 = 35,960 + 17,980 = 53,940

Step-by-step explanation:

for alice to be payed time in a half first you would multiply the amount of hours worked (62) by her pay rate (580) then you would add it to half the amount of hours she worked(31) by the rate of her pay (580). Her pay would be $53,940 for last week.

5 0

3 years ago

Order the numbers from least to greatest. <br> 1/5, 25%, and 0.2 repeating

kvasek [131]

Answer 1/5, 0.2 repeating, and 25%

3 0

4 years ago