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Serjik [45]
2 years ago
6

Which of the following data sets shows no correlation? A B с

Mathematics
1 answer:
dimaraw [331]2 years ago
5 0

Answer:

B

Step-by-step explanation:

B data sets shows no correlation

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If figure 1 has 4 tiles, fig 2 has 10, and fig 3 has 16... What is my rule?
FinnZ [79.3K]

Answer:

an = 6n -2

Or

an+1 = an +6

Step-by-step explanation:

to go from 4 to 10 we add 6 tiles

to go from 10 to 16 we add 6 tiles

We add 6 tiles each time

an = a1 + d(n-1)  where an is the value of the nth term  a1 is the first term  d is the common factor and n is the term number

an = 4 + 6( n-1)

an = 4 + 6n -6

an = 6n -2

Or

an+1 = an +6

7 0
2 years ago
WILL GIVE BRAINLIEST ˇ෴ˇ TO BEST ANSWER
Vikki [24]

Answer:

50%

Step-by-step explanation:

because there is two 25%  that makes 50% and there is one 50%

7 0
3 years ago
A simple linear regression analysis was conducted to predict the Exam 3 score of students in STA 2023 based on their Exam 1 scor
Nina [5.8K]

Answer:

Option A)  As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.

Step-by-step explanation:

We are given the following in the equation:

y(x) = 50.57+0.4845x

where, above equation is a  linear regression equation to predict the Exam 3 score of students in STA 2023 based on their Exam 1 score.

Here,

y is the dependent variable that is score of exam 3.

x is the independent variable that is the score of exam 1.

Comparing the given equation to a linear equation, we have,

y = mx + c

Slope, m = 0.4845

Intercept, c = 50.57

We define the slope as rate of change.

If there is a increase in x by 1 unit, then,

y(x) = 50.57+0.4845x\\y(x+1) = 50.57+0.4845(x+1)\\y(x+1)-y(x) = 50.57+0.4845(x+1)-50.57-0.4845x\\y(x+1)-y(x)  = 0.4845(x+1-x)\\y(x+1)-y(x)  = 0.4845

Thus, we can interpret the slope of the line as

Option A) As the Exam 1 score increases by 1 point, the student's Exam 3 grade will increase, on average, by 0.4845 points.

5 0
3 years ago
Solve each of the following by using a proportion. 1. One out of every five people who buy ice cream buys vanilla ice cream. If
Flauer [41]

Answer:

1) 25 ice cream cones

2) $1992.18 in taxes.

3) 60 miles apart.

4) 60 rotations

5)45/p where p is the number of pages.

Step-by-step explanation:

1) One out of every five people who buy ice cream buys vanilla ice cream. If a store sells 125 ice cream cones in one day, about how many will be vanilla?

We need to solve this problem using a proportion and solving for x:

\frac{1}{5}=\frac{x}{125}  \\x=125/5\\x=25

25 ice cream cones will be vanilla.

2. Taxes on a house assessed at $64,000 are $1500 a year, If the assessment is raised to $85,000 and the tax rate did not change, how much would the taxes be?

\frac{64000}{1500} =\frac{85000}{x} \\x=1500(85000)/64000\\x=1992.18

Taxes would be $1992.18

3. I have a map where Indy and Ft. Wayne are 3 centimeters apart. Kokomo and Indy are 1.5 cm apart on the map. If I know that Indy and Ft. Wayne are really 120 miles apart, how far would Indy and Kokomo be in real life?

To solve this, first we have to remember that 1 mile equals 160934 cms. Therefore, 120 miles would be 19312080 cms.

\frac{3}{1.5} =\frac{19312080}{x} \\x=19312080(1.5)/3\\x= 9656040

Indy and Kokomo are 9656040 cms apart, this equals 9656040/160934 = 60 miles apart.

4. A clock can make 1 full rotation with its hand in 1 minute. How many rotations would it make in 1 hour?

1 hour has 60 minutes, therefore the proportion would be:

\frac{1}{1}=\frac{x}{60}  \\x=60(1)/(1)\\x=60

It makes 60 rotations in 1 hour.

5. Let us imagine that your MATH 123 book cost $45 to print. How much does it cost per page?

I don't know how many pages your book has, let's call p the number of pages it has.

\frac{45}{p} =\frac{x}{1} \\x=45/p.

It would cost 45/p where p is the total of pages of your book.

6 0
3 years ago
Eighty-four hundredths in standard form
DIA [1.3K]

Answer:

.84

Step-by-step explanation:

6 0
2 years ago
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