answer.
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
natka813 [3]
2 years ago
7

Vocabulary quiz scores for the 20 students in Mr. Harley’s class are shown in the table. Use this data to answer questions 4 and

5. VOCABULARY QUIZ SCORE SCORE FREQUENCY 40 X 50 X 60 XX 70 XXXX 80 XX 90 XXXX 100 XXXXXX 4. Calculate the mean and interpret its meaning in this context. 5. Calculate the mean absolute deviation and interpret its meaning in this context. 6. Identify and interpret the meaning of any outliers in the data set
Mathematics
1 answer:
CaHeK987 [17]2 years ago
4 0

Answer:

The mean should be 80.5. This means the average number of test scores is 80.5. The mean absolute deviation should be 15.5. This means the average of the values are less than the mean by  about 15.5.

You might be interested in
4. Heather is putting together a square bulletin board for her new room, and the area of the
tester [92]

Answer:

69cm on all 4 sides

Step-by-step explanation:

196/4= 69

4 0
2 years ago
Read 2 more answers
If the five digit number aa448 is divisible by 9, what digit does a represent?
kaheart [24]

Answer:

a represent 1

and number is 11448.

Step-by-step explanation:

We know that a number is divisible by 9 if the sum of its digit is divisible by 9.

Given number aa448

sum of 4+4+8 = 16

number divisible by 9, 18 , 27,36

as we see sum of 448 is 16 , hence sum of a+a+4+4+8 should be  number divisible by 9 and greater than 16 which is 18, 27,36

Let see of if sum of digits of aa448 is divisible by  18

a+a+4+4+8 = 18

2a + 16 = 18

2a = 18-16 = 2

a =2/2 = 1

Thus, number will be 11448

________________________________________

Let see of if sum of digits of aa448 is divisible by  27

a+a+4+4+8 = 27

2a  = 27 - 16

2a = 11 = 2

a =11/2 = 5.5

as digit cannot be fraction of decimal, it can take value from 1 to 9 hence

sum of digits of aa448 is not divisible by  27

______________________________________________

Let see of if sum of digits of aa448 is divisible by  36

a+a+4+4+8 = 36

2a + 16 = 36

2a = 36-16 = 20

a =20/2 = 10

as digit can take value from 1 to 9 hence sum of digits of aa448 cannot  be divisible by  36 or any higher number than 36 which is divisible by 9.

Thus , a represent 1

and number is 11448.

5 0
2 years ago
How did advances in military technology after the industrial revolution affect European empires?
mafiozo [28]

Answer:

They allowed small European armies to defeat larger African and Asian forces when invading territory.

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Renna pushes the elevator button, but the elevator does not move. The mass limit for the elevator is 450 kilograms (kg), but Ren
liraira [26]

The picture below has both of the answers to your problem.

7 0
2 years ago
Read 2 more answers
I have 6 pens. A friend gives me n more pens.How many pens do i have now/
kap26 [50]

Answer: 6 + n = 6n

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Other questions:
  • Jenny runs a cake making business, she receives an order of 6 carrot cakes. How much mixed spice will she need for 6 cakes. The
    10·2 answers
  • If R is the midpoint of QS, RS=2X-4, ST=4X-1, and RT=8X-43, find QS
    5·1 answer
  • A trapezoid with an area of 166.75 in has bases that measure 21 in and 8 in find the height of the trapezoid
    9·2 answers
  • Two lines, A and B, are represented by the equations given below: Line A: 2x + 2y = 8 Line B: x + y = 4 Which statement is true
    9·1 answer
  • The coordinates of the vertices of △PQR are P(1, 4) , Q(2, 2) , and R(−2, 1) . The coordinates of the vertices of △P′Q′R′ are P′
    10·2 answers
  • Select the angle that correctly completes the law of cosines for this triangle. 72 + 252 – 2(7)(25)cos ___ = 242 A. 180° B. 90°
    15·1 answer
  • Two-thirds of Tyrone's books are mystery novels. Tyrone has 42 books How many mystery novels does he have ?
    13·1 answer
  • Which expression is equivalent to StartFraction (5 a b) cubed Over 30 a Superscript negative 6 Baseline b Superscript negative 7
    10·2 answers
  • 16 oz of trail mix costs $3.20. What is the cost per ounce? *
    10·2 answers
  • The ceiling of Katie’s living room is a square that is 10 ft long on each side. Katie knows the diagonal of the ceiling from cor
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!