All categories

2 years ago

WILL CHOOSE BRAINLIEST!!!

Mathematics

1 answer:

motikmotik2 years ago

3 0

Answer:

Step-by-step explanation:

Graph the points and draw an aproximate line of fit that includes two of the points. Then using point-slope form find the linear equation of that line.

10-(-4)=m(-5-4) is 14=m(-9) solve for m and find the slope is aproxx -14/9 or -1.555. Then do some fancy math to find your y intercept and you come out with an aproxx line of fit of y=(-14/9)x+(20/9). Or you could plug these points into excel and have it spit out a trendline of y=(-1.26)x+(0.467)

You might be interested in

A teacher wants to see if a new unit on fractions is helping students learn. She has five randomly selected students take a pre-

mylen [45]

Answer:

Find the difference between the two scores for a number of sample distributions. Make a plot of the differences and check for outliers.

Step-by-step explanation:

Checking for Normality means basically checking if one's data distribution approximates a normal distribution.

A normal distribution is represented by a bell-shaped curve, peaking around the mean, indicating that all of the data spreads out from the mean.

Th original aim of the teacher is to check the effects of the particular added unit on the performance of students in the subject.

The teacher goes about this by testing the students before and after learning the unit.

The best way to compare of course, is to take a difference of the test scores for different samples. This first gives the idea of whether the newly introduced unit affects performance.

This set of differences is then checked for normality.

So, the best manner to make a plot of these differences. Like we mentioned earlier, a normal distribution is bell shaped. So, the plot of these differences would be a bell shaped curve if the distribution was normal and we wouldn't get a bell shaped curve if the distribution wasn't normal.

Checking for outliers help to eliminate part of data that can totally scatter the regular behaviour of the data distribution.

So, the best way for the teacher to check for normality is to find the difference between the two scores for a number of sample distributions. Make a plot of the differences and check for outliers.

Hope this Helps!!!

5 0

3 years ago

What is the value of x?

andrew11 [14]

Hope this will help you .

answer is 68

given than 2 sides are equal therefor 2 angles are also equal ,

so, angle 1 + angle2 + angleX = 180 [ASP]

2angle1 + angle X = 180
angle x = 150 - [56][2]
angle x = 180-112

ANGLE x = 68 DEGREE
MARK IT BRAINIEST IF IT WAS REALLY HELPFUL.

4 0

3 years ago

Solve for x. 3/4 = x/12 <br> I need work shown to

marta [7]

$\frac{3}{4} = \frac{x}{12}$

To solve for x you have to bring the 12 to the other side

How do we do this?

Well if you think about it this is technically what the equation shows

$\frac{3}{4} = x * \frac{1}{12}$

This means to isolate x you can multiply both sides by 12 and that will cancel $\frac{1}{12}$ from the right side

$\frac{3}{4} * 12 = x * \frac{1}{12} * 12$

$\frac{36}{4} = x * 1\\\frac{36}{4} = x$

$\frac{36}{4}$ can be further simplified to...

^^^This is the answer

Check:

3/4 = 9/12

3/4 = 3/4

Hope this helped!

~Just a girl in love with Shawn Mendes

4 0

3 years ago

Read 2 more answers

Zappos is an online retailer based in Nevada and employs 1,300 employees. One of their competitors, Amazon, would like to test t

Amanda [17]

Answer:

$t=\frac{33.9-36}{\frac{4.1}{\sqrt{22}}}=-2.402$

$df = n-1= 22-1=21$

$t_{\alpha/2}= -2.08$

Since the calculated values is lower than the critical value we have enough evidence to reject the null hypothesis at the significance level of 2.5% and we can say that the true mean is lower than 36 years old

Step-by-step explanation:

Data given

$\bar X=33.9$ represent the sample mean