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3 years ago

Which relationship would most likely have a positive correlation?

Mathematics

1 answer:

tiny-mole [99]3 years ago

4 0

Answer:

Step-by-step explanation:

The only thing to do here is just check all of the answers.

A makes no sense, as the number of keys on a keyboard doesn't affect the amount of memory in a computer at all (no correlation).

B makes a bit more sense, but it's still wrong. If a train travels faster, it gets places quicker, or the time goes down. If (If one goes up, the other goes down) is true, then you have negative correlation.

C makes the most sense, as if there's more people at a game, then those more people will probably buy more hot dogs. If (If one goes up, so does the other) is true, then you have positive correlation, which is what we want.

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The producer of a certain medicine claims that its bottling equipment is very accurate and that the standard deviation of all it

Alekssandra [29.7K]

Answer:

x^2 = 22.99

Step-by-step explanation:

Given data:

standard deviation of all filled bottles = 0.1

overall hypothesis is significant at $\sigma = 0.1$

for test statistics, use chi-square test

$x^2 = \frac{(n-1) s^2}{\sigma^2}$

where

n - sample size

s =simple deviation

$x^2 =\frac{(20-1)0.011^2}{0.1^2}$

$x^2 = 22.99$

7 0

4 years ago

Describe the ored of operations in this expression find the number it equals.

svlad2 [7]

Answer:

√71

Step-by-step explanation:

Simplify 42÷6 to 7

√64+7

Simplify 64+7 to 71

=√71

8 0

4 years ago

Nicole bought six pounds of apples at $1.50 per pound. The store had a discount of $2 off her total purchase. Nicole and her fri

Andru [333]

Answer:

Step-by-step explanation:

Total amount of apples that Nicole bought was 6 pounds.

Each pound of apple cost $1.50

This means that the total cost of the 6 pounds of apple that Nicole bought would be

6 × 1.5 = $9

The store had a discount of $2 off her total purchase. This means that the amount that was paid is

9 - 2 = $7

If Nicole and her friend then divided the cost of the purchase evenly, let x represent the amount that each of them would pay. Therefore, the expression that can be used to determine how much Nicole and her friend each paid for the apples would be

x = 7/2

6 0

3 years ago

The cost of tuition at a college is $12,000 and is increasing at the rate of 6% each year. Use exponential function to find the

Gnesinka [82]

Answer:

The cost of tuition fee after 4 years is $15,149.72.

Step-by-step explanation:

Exponential function:

$A=P(1+r)^n$

A= the amount after n years

P= Initial amount

r= rate of increasing

n= time in years

The cost of tuition at a college is $12,000. It is increasing at the rate of 6% each year.

Here, P= $12,000, r= 6%= 0.06, n= 4 years.

$\therefore A=12,000(1+0.06)^4$

$\Rightarrow A= 12000(1.06)^4$

=$15,149.72

The cost of tuition fee after 4 years is $15,149.72.

7 0

4 years ago

Question

MrRa [10]

<h2>>> Answer </h2>

_______

$\:$

a10 = 10 + (10 - 1) × 1

a10 = 10 + 9 × 1

a10 = 10 + 9

a10 = 19

8 0

3 years ago