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Reptile [31]
4 years ago
13

suppose the linear regression line y= 2.4x + 3.1 predicts the time,in minutes it takes you to be served at a food stand if there

are x people in line ahead of you. About how much time would it take you to be served if there are 3 people in line ahead of you?
Mathematics
2 answers:
IgorLugansk [536]4 years ago
7 0

Answer:

10.3

Step-by-step explanation:

Scorpion4ik [409]4 years ago
3 0

Answer:

Just substitute "x" with "3".

Step-by-step explanation:

y = 2.4x + 3.1

y = 2.4(3) +3.1

y = 7.2 + 3.1

y= 10.3

Answer: 10.3 minutes

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What is the slope of the line that modles the table below? ​
Shtirlitz [24]

Answer:

3/4

Step-by-step explanation:

as y goes up 3 x goes up 4

6 0
3 years ago
If the data point is at (3, 10.5) and the prediction equation is y = -6.1x + 12.5, what is the value of the residual for this da
Keith_Richards [23]

Given:

The data point is (3,10.5).

The prediction equation is y=-6.1x+12.5.

To find:

The value of the residual for this data point.

Step-by-step explanation:

The data point is (3,10.5). So, the actual value is 10.5 at x=3.

Prediction equation is

y=-6.1x+12.5

Putting x=3, we get

y=-6.1(3)+12.5

y=-18.3+12.5

y=-5.8

The formula for residual is:

Residual = Actual value - Expected value

Residual=10.5-(-5.8)

Residual=10.5+5.8

Residual=16.3

Therefore, the residual for the given data point is 16.3.

6 0
3 years ago
If an adult male is told that his height is 3 standard deviation above the mean of the normal distribution of heights of adult m
Musya8 [376]

Answer:

He can be on either the lower end of that 95%, or on the higher end. this guy is not a too short, nor is he extremely tall.

Sry if it's nor right, It was a little confusing.

Hope this helps!(づ ̄3 ̄)づ╭❤~

6 0
3 years ago
Find the value of the variable and yz if y is between x and z Xy=6b yz=8b Xz=175
Anika [276]

The value of b is 12.5 and the value of YZ is 100

<h3>How to determine the variable and yz?</h3>

The given parameters are:

XY = 6b

YZ = 8b

XZ = 175

This means that

XZ = XY + YZ

So, we have:

6b + 8b = 175

Evaluate the sum

14b = 175

Divide by 14

b = 12.5

Substitute b = 12.5 in YZ = 8b

YZ = 8 * 12.5

Evaluate

YZ = 100

Hence, the value of b is 12.5 and the value of YZ is 100

Read more about lengths at:

brainly.com/question/24571594

#SPJ1

7 0
2 years ago
This is Function or no? Can you help me please?)
marissa [1.9K]

Only 19 is a function because a function only has one y value for every x value.  For the other graphs, there are at least two y values for each x value.


6 0
3 years ago
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