1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
cupoosta [38]
3 years ago
13

An equation was used to predict the number of possible enrollments in an afterschool program for the first 6 months of the year.

The actual enrollments are also listed.
Actual enrollment 55 80 95 100 115 90
Predicted enrollment 75 80 85 90 95 100


The sum of the residuals is
Mathematics
1 answer:
AysviL [449]3 years ago
6 0
55 + 80 + 95 + 100 +115 +90 =535 actual enrollments. 75 + 80 +85 +90 +95 + 100 = 525 predicted enrollments. 535 - 525 = 10 residuals.
You might be interested in
What is the equation in slope intercept form?
patriot [66]

Answer:

Step-by-step explanation:

The line has a slope of -1/3. For lines to be perpendicular there product must equal negative 1

m1(m2)=-1

-m/3=-1

m=3

So we know our line has a slope of three so

y=3x+b, we can solve for the y intercept, b, using point (-2,8)

8=3(-2)+b

8=-6+b

b=14, so our line is

y=3x+14

8 0
2 years ago
Fifty pro-football rookies were rated on a scale of 1 to 5, based on performance at a training camp as well as on past performan
son4ous [18]

Answer:

(a-1) 22 rookies receiving a rating of 4 or better.

(a-2) 14 rookies received a rating of 2 or worse.

(b-1) Constructed below in explanation.

(b-2) 8% of total rookies received a rating of 5.

Step-by-step explanation:

We are provided the rating of Fifty pro-football rookies on a scale of 1 to 5 based on performance at a training camp as well as on past performance.

The frequency distribution constructed is given below:

 Rating          Frequency

     1                       4

     2                     10       where ranking of 1 indicate a poor prospect whereas

     3                     14         ranking of 5 indicate an excellent prospect.

     4                     18

     5                      4

(a-1) Rookies receiving a rating of 4 or better = Rating of 4 + Rating of 5

       So, by seeing the frequency distribution 18 rookies received a rating of

         4 and 4 rookies received a rating of 5.

Hence, Rookies receiving a rating of 4 or better = 18 + 4 = 22 rookies.

(a-2) Number of rookies received a rating of 2 or worse = Rating of 2 +

                                                                                                 Rating of 1

     So, by seeing the frequency distribution 10 rookies received a rating of

      2 and 4 rookies received a rating of 1.

Hence, Rookies receiving a rating of 2 or worse = 10 + 4 = 14 rookies.

(b-1) Relative Frequency is calculated as = Each frequency value /

                                                                         Total Frequency

   Rating        Frequency(f)        Relative Frequency

     1                       4                          4 / 50 = 0.08

     2                     10                         10 / 50 = 0.2

     3                     14                          14 / 50 = 0.28

     4                     18                          18 / 50 = 0.36

     5                   <u>   4    </u>                       4 / 50  = 0.08

                     \sum f<u>= 50 </u>                

Hence, this is the required relative frequency distribution.

(b-2) To calculate what percent received a rating of 5 is given by equation :

            <em>  x% of 50 = 4 </em> {Here 4 because 4 rookies received rating of 5}

         x = \frac{4*100}{50} = 8% .

Therefore, 8% of total rookies received a rating of 5.

5 0
3 years ago
Huilan is 6 years older than Thomas. The sum of their ages is 80 . What is Thomas's age?
Yuki888 [10]
80-6= 74. 74/2=37 thomas age is 37
4 0
3 years ago
What is 0.472 rounded to the nearest tenth? (2 points)<br><br>​
MA_775_DIABLO [31]

To round 0.472 to the nearest tenth consider the hundredths' value of 0.472, which is 7 and equal or more than 5. Therefore, the tenths value of 0.472 increases by 1 to 5.

So, the answer would be 0.5.

<u>I hope this helped!</u>

7 0
3 years ago
Read 2 more answers
-7+82*78-67^6+5-4/6=?<br><br> sufferrrrrrrrrr!
mixas84 [53]

Answer:

-90458375775.7

Step-by-step explanation:

yes

8 0
2 years ago
Read 2 more answers
Other questions:
  • Does the equation y= 5x+4 show a proportional relationship between x and y
    14·2 answers
  • P=-3w+9 <br><br><br><br>tell me the steps I already have the steps
    15·1 answer
  • 2. Which equation in standard form has a graph that passes through the point (-5,8) and has a
    11·1 answer
  • The measures of ∠1, ∠2, and ∠3 are 40%, 12.5%, and 25% of the sum of the angle measures of the quadrilateral. Find the value of
    5·1 answer
  • Acidity is measured on the pH scale. The acidity of a substance is given by pH=−logH, where H is the concentration of Hydrogen i
    15·1 answer
  • How many times larger is a 10pound dog from a hamster weighing 5/8 pound
    9·1 answer
  • Graph the line containing the point P and having slope m.<br><br> P=(1,8); m=0
    5·1 answer
  • First triangle sides are 20 and 30. Second triangle sides are 16 and 24. Write the ratio of corresponding sides for the similar
    7·1 answer
  • An employees hourly wage is $16.50 per hour plus $0.25 for each of the q units produced during the hour. Write an algebraic expr
    13·1 answer
  • What is the slope of y=-4?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!