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Tatiana [17]
2 years ago
8

45+40+45=55+60+90+30+55+35+60+45+75

Mathematics
2 answers:
kvasek [131]2 years ago
8 0

Answer:

45+40+45=55+60+90+30+55+35+60+45+75

Step-by-step explanation:

Its 505

tresset_1 [31]2 years ago
6 0

Answer:

635

Step-by-step explanation:

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Nadya [2.5K]

Answer:

a. 0.83

b. 44107.3

c. 2252.7

Step-by-step explanation:

a)

The correlation coefficient is calculated as

byx=rSy/Sx

rSy=byx*Sx

⇒r=byx*Sx/Sy

Sy=standard deviation of y=standard deviation of current salary=15300

Sx=standard deviation of x=standard deviation of beginning salary=5970

byx=2.12

r=2.12*5970/15300

r=12656.4/15300

r=0.83

There is a strong positive correlation between current and beginning salary.

b)

Beginning salary=$22000

As

y^ =−2532.7 + 2.12x.

Current salary=-2532.7+2.12*beginning salary

Current salary=-2532.7+2.12*22000

Current salary=-2532.7+46640

Current salary=$44107.3

The predicted current salary of Mr. Joseph Keller is $44107.3.

c)

Residual=y-y^=Observed-Predicted

Observed Current Salary of Kathy Jones=40000

Beginning salary of Kathy Jones=19000

y^ =−2532.7 + 2.12x.

Predicted Current salary=-2532.7+2.12*beginning salary

Predicted Current salary=-2532.7+2.12*19000

Predicted Current salary=-2532.7+40280

Predicted Current salary=$37747.3

Residual=Observed Current Salary-Predicted Current salary

Residual=40000-27747.3

Residual=$2252.7

The residual for Ms. Jones is $2252.7.

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3 years ago
A rectangle has four sides. Fill in the blanks in the double number-line below.
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Box 1: 6 Box 2: 16 Box 3: 20 Box 4: 24
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3 years ago
What does 7.42 ÷ 1.75=
geniusboy [140]
Divide them like this: 7.42/1.75 = 4.24
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Read 2 more answers
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Answer
It’s the first one I guess
Since it’s obviously given in the sequence
Hope it’s correct
Sorry if wrong :’(
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3 years ago
X=6<br> y=2x-3<br><br> i’m doing Solve Systems of Equations by Substitution.
Oksana_A [137]

y=9

Step-by-step explanation:

y=2(6)-3

y=12-3

y=9

4 0
2 years ago
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