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3 years ago

What is the right answer

Mathematics

2 answers:

poizon [28]3 years ago

7 0

Answer:

The complement of 44° is the angle that when added to 44° forms a right angle ( 90° ). Subtract 44 from 90.

Step-by-step explanation:

BigorU [14]3 years ago

3 0

The person above me got it right

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The College Board provided comparisons of Scholastic Aptitude Test (SAT) scores based on the highest level of education attained

poizon [28]

Answer:

a. $H_{0}:$ u1≤u2

$H_{a} :u1>u2$

b P<0.05 rejected H

Step-by-step explanation:

College High School

485 442

534 580

650 479

554 486

550 528

572 524

497 492

592 478

487 425

533 485

526 390

410 535

515

578

448

469

The mean is the average . the sum of number over the number of observation

x1=525

x2=487

s.d1=59.42

s.d2=51.74

n1=16

n2=12 $\alpha =0.05$

Determine the hypothesis

$H_{0}:$ u1≤u2

$H_{a} :u1>u2$

find the degree of freedom $(\frac{s1^2}{n1} +\frac{s2^2}{n2} )^2/(\frac{s1^2}{n1} )^2/n1-1+(s2^2/n2)^2/n2-1\\\\(\frac{59.42^2}{16} +\frac{51.7476^2}{12} )^2/(\frac{59.42^2}{16} )^2/16-1+(51.74^2/12)^2/12-1$

p-value is the probability of obtaining the value of the test statistics. In the column of t-value in the row df=25

0.025<P<0.05

if the P value is actually less than or the same as the significant level, then the null hypothesis is rejected

P<0.05 rejected H

8 0

3 years ago

in constructing a box and whisker plot from the data set below at which value would you draw the left and right side of the box

KatRina [158]

A box and whisker plot is a type of statistical graph that shows the median distributions of the data set. The box represents the data median and the medias of the quartiles. The whiskers represents the lines extended from the box to the lowest and the highest data.

Take this data as an example:
3.9, 4.1, 4.2, 4.3, 4.3, 4.4, 4.4, 4.4, 4.4, 4.5, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1
First, find the middle value. That would be the median. In this case, that would be 4.4. Let's denote this as Q₂ or Quartile 2. Now, take the group of data set before and after the median. These are:

3.9, 4.1, 4.2, 4.3, 4.3, 4.4, 4.4, 4.4

and

4.5, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1

The middle of the first data set is Q₁ = 4.3, while the middle of the second set is Q₃ = (4.7+4.8)/2 = 4.75

To construct the box and whisker plot, create line for the lowest value 3,9, Q₁, Q₂, Q₃ and the highest value, 4.4. The left side of the box would be Q₁, while the right side of the box is Q₃. The line in between is the media Q₂. The whiskers are the lines connecting the lowest to Q₁, and Q₃ to the highest on the other side. The resulting box and whisker plot is shown in the attached picture.

8 0

3 years ago

In Arianna's math class, 1⁄6 of the students are also in her

Pani-rosa [81]

Answer:

0.166666667, to round up it is 0.17

Step-by-step explanation:

8 0

3 years ago

Which one is not true?

Charra [1.4K]

Answer:

Step-by-step explanation:

-61>-10>0 is not true

The greater the negative number is the smaller it becomes.

8 0

3 years ago

Why lie about my free answers );

dimaraw [331]

I like your sketchers

3 0

3 years ago