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3 years ago

You earn $596.92 per week.

Mathematics

1 answer:

mash [69]3 years ago

5 0

Answer:

your net pay is $441.84

Step-by-step explanation:

596.92 - 155.08 = 441.84

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A study finds a correlation coefficient of r = .32. This number gives you information about which of the following? Group of ans

Mrac [35]

Answer:

Strength and direction of the relationship.

Step-by-step explanation:

Given that A study finds a correlation coefficient of r = .32. This number gives you information about which of the following?

Group of answer choices Type of relationship and importance Statistical validity and external validity Statistical significance and effect size Strength and direction of the relationship.

We know that correlation coefficient represented by r is a measure of association between two variables. r can lie between -1 and 1. While negative correlation suggests inverse relationship positive a positive association.

0 correlation means the two variables are independent.

If nearer to 0, it represents weak correlation and nearer to 1 than 0 represents strong correlation.

Here r =0.32 a weak positive correlation

r represents

Strength and direction of the relationship.

6 0

2 years ago

In a study relating the degree of warping, in mm, of a copper plate (y) to temperature in °C (x), the following summary statisti

elena-14-01-66 [18.8K]

Answer:

y = 0.3035 + 0.0082x

0.6315 mm

x = 23.9634 °C

Step-by-step explanation:

a. Compute the least-squares line for predicting warping from temperature. Round the answers to four decimal places.

We need to find an equation of the form

y = b + mx

where m is the slope and b the Y-intercept.

The slope m can be computed with the formula

$\bf m=\displaystyle\frac{\displaystyle\sum_{i=1}^n(x_i-\bar x)(y_i-\bar y)}{\displaystyle\sum_{i=1}^n(x_i-\bar x)^2}$

Replacing the values in our formula (we will round at the end of the calculations)

$\bf m=\displaystyle\frac{806.94}{98,775}=0.008169476$

the Y-intercept b is computed with the formula

$\bf b=\bar y-m\bar x$

therefore we have

$\bf b=0.5188-0.008169476*26.36=0.303452613$

and the least-squares line rounded to 4 decimals would be

y = 0.3035 + 0.0082x

b. Predict the warping at a temperature of 40°C. Round the answer to three decimal places.

We simply replace x with 40 to get

y = 0.3035 + 0.0082*40 = 0.6315 mm

c. At what temperature will we predict the warping to be 0.5 mm? Round the answer to two decimal places

Here, we replace y with 0.5 and solve for x

0.5 = 0.3035 + 0.0082x ===> x = (0.5-0.3035)/0.0082 ===>

x = 23.9634 °C

6 0

3 years ago

Find the height of a triangle that has an area of 30 square units and a base measuring 12 units.

Alexxx [7]

The equation for the area of a triangle is 1/2 x base x height. Plug in the values that you already have with h being the missing height value: 30= 1/2 x 12 x h Simplify: 30=6h Solve: 30/6=h 5=h The heoght of the triangle is 5 units

7 0

3 years ago

The line plot above shows the distance in miles Luna runs each day. What is the difference in distance between the fewest miles

alukav5142 [94]

Answer:

The answer is 4

Step-by-step explanation:

6 0

2 years ago

Please help me. I can’t do it

Maslowich

Answer: A) -8

B) - 41

C) - 39

Step-by-step explanation:

6 0

2 years ago