All categories

2 years ago

Kiley gathered the data in the table. She found the approximate line of best fit to be y = 1.6x – 4.

Mathematics

2 answers:

Alisiya [41]2 years ago

8 0

Answer:

the correct answer is D)1.8

Step-by-step explanation:

When you plug the value 3 into the formula you get the experimental value of 0.8 then you subtract -1 so the negative one turns into a positive one. then you add because both signs change. hope this helps

mihalych1998 [28]2 years ago

7 0

The difference between the observed value of the dependent variable (y) and the predicted value (ŷ) is called the residual (e). When x is equal to 3, the value of y from the best fit line would be 0.8. Therefore, the residual would be -1 - 0.8 = -1.8. Option A is the correct answer.

You might be interested in

The table represents a linear function. A two column table with six rows. The first column, x, has the entries, negative 2, nega

Radda [10]

Answer: The slope is 3

Step-by-step explanation:

For each unit of run in the x-values, there is an increase of 3 in the y-values. Slope is Rise over Run so 3/1 = 3

8 0

2 years ago

Read 2 more answers

In a study on the fertility of married women conducted by Martin O’Connell and Carolyn C. Rogers for the Census Bureau in 1979,

Fed [463]

Answer:

we cannot conclude hat the proportion of wives married less than two years who planned to have children is significantly higher than the proportion of wives married five years

Step-by-step explanation:

Given that in a study on the fertility of married women conducted by Martin O’Connell and Carolyn C. Rogers for the Census Bureau in 1979, two groups of childless wives aged 25 to 29 were selected at random, and each was asked if she eventually planned to have a child. One group was selected from among wives married less than two years and the other from among wives married five years.

Let X be the group married less than 2 years and Y less than 5 years

X Y Total

Sample size 300 300 600

Favouring 240 288 528

p 0.8 0.96 0.88

$H_0: p_x=p_y\\H_a: p_x>p_y$

p difference = -0.16

Std error for difference = $\sqrt{0.88*0.12/600} =0.01327$

Test statistic = p difference/std error=-6.03

p value <0.000001

Since p is less than alpha 0.05 we cannot conclude hat the proportion of wives married less than two years who planned to have children is significantly higher than the proportion of wives married five years

4 0

2 years ago

1. which angle is congruent to Angle 1?

Inessa [10]

Part 1) which angle is congruent to Angle 1?

we know that

When two lines are crossed by another line (which is called the Transversal), the angles in matching corners are called corresponding angles

m∠5=m∠1 ----------> by corresponding angles postulate

therefore

the answer Part 1) is

Angle $5$

Part 2) Which can be used to directly prove that Angle 1 =~ Angle 8?

we know that

Alternate exterior angles are defined as two exterior angles on opposite sides of a transversal which lie on different parallel lines.

in this problem

m∠1=m∠8 -------> by alternate exterior angles theorem

therefore

the answer part 2) is the option

Alternate Exterior Angles Theorem

Part 3) If m Angle 5 = 42 degrees, what is m Angle 4?

we know that

Alternate interior angles are two interior angles which lie on different parallel lines and on opposite sides of a transversal

m∠4=m∠5 --------> by alternate interior angles theorem

m∠4= $42\ degrees$

therefore

the answer Part 3) is

$42\ degrees$

5 0

2 years ago

Read 2 more answers

Below are the data collected from two random samples of 500 American adults on the number of hours they work per day (rounded to

katen-ka-za [31]

The mean is just the arithmetic average...

Sample A=8.1

Sample B=8.11

Both Samples=8.105

So Ryan would be closer to being correct given either of or both samples.

6 0

2 years ago

Read 2 more answers

Sheldon is creating a graph to represent the trip he takes from his home to his favorite clothing store. In his graph, one unit

juin [17]

Answer:

hjgfghjk

Step-by-step explanation:

8 0

2 years ago