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erica [24]
3 years ago
12

A study took a random sample often married couples, and asked the husband's and wife's age. The scatterplot shows the associatio

n between the ages of the husbands and wives. Not surprisingly, older husbands tend to have older wives, so the data has a positive linear association. A researcher finds that the least squares regression equation for this relationship is ŷ= 0.89 x + 2.62.
Suppose you interview a married man who has lived to the ripe old age of 100, and still married to his wife. using the least squares regression equation, predict his wife's age.

A. 100
B. 89
C. 91.62
D. 86.38​

—my answer is option (c.) 91.62
Any reviews would be much appreciated...

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0
I agree I personally think it’s C too! :)
lidiya [134]3 years ago
7 0
I agree :)! The correct answer is C, 91.62. Well.. I think. lol.
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I have litre of bottle of cola i drink 650 ml how much is left
TiliK225 [7]

There are 1000 ml in one liter if you drank 650 ml then:

1000 - 650 = 350

350 ml are left

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7 0
3 years ago
Read 2 more answers
The number of lines formed by 4 points, no three of which are collinear, is ____. A.5 B.4 C.6 D.3
djverab [1.8K]
Use the formula
n(n-1)/2

which is the total number of connections between n points

So,
4(3)/2   = 6

the answer is option C.

Hope this helps
6 0
3 years ago
Graph h(x)=0.5(x+2)^2 -4 by following these steps:
Goshia [24]

Answer:

Step 1: Identify a, h, and k.

a=0.5, h= -2, k= -4

Step 3: The axis of symmetry is the line x= -2

Step 4: h(-4)= -2 h(-6)= 4

The graph should have points plotted at (-6, 4), (-4, -2), (-2, -4), (0, -2), and (2, 4)

Step-by-step explanation: The answers were already there, just here to repeat for others who are confused.

4 0
3 years ago
Convert the angle 0 = 70° to radians.​
xxMikexx [17]

Answer:

7/18π radians   Exact answer

1.22 radians      Decimal approximation

Step-by-step explanation:

π radians  = 180º

70 * π/180 = 7/18π

7/18 * 3.14159 ≈ 1.22

3 0
3 years ago
A manager wants to determine the number of containers to use for incoming parts for a kanban system to be installed next month.
qwelly [4]

Answer:

2 containers should be used

As the system improves, neither more or fewer containers be required

Step-by-step explanation:

According to the given data we have the following:

D=83 pieces per hour.

T=80 minutes=1.33 hour

X=0.18

C=53

In order to calculate how many containers should be used we would have to use the following formula:

Number of containers=<u>DT(1+X)</u>

                                         C

Number of containers=<u>(83)(1.33)(1+0.18)</u>

                                                 53

Number of containers=2.45=2

2 containers should be used.

As the system improves, neither more or fewer containers be required

8 0
3 years ago
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