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
svp [43]
1 year ago
14

A teacher summarizes grades on an exam by,Min = 26, Q1 = 67, Q2 = 80, Q3 = 87, Max = 100, Mean = 76, Mode = 100, Standard deviat

ion = 76, IQR = 20She incorrectly recorded one of these. Which one do you think it was? Why?
Mathematics
1 answer:
chubhunter [2.5K]1 year ago
5 0

we have

Min=26

Q1=67

Q2=80

Q3=87

Max=100

Mean=76

Mode=100

standard deviation=76

IQR=20

so

In this problem

the mean is equal to the standard deviation

therefore

<h2>The standard deviation is incorrectly</h2>
You might be interested in
Rewrite the function by completing the square<br><br> h(x)=4x^2+4x+1
lisov135 [29]

Answer:

h(x) = 4(x+\frac{1}{2})^{2}

Step-by-step explanation:

h(x)=4x^2+4x+1\\h(x)=4(x^2+x+\frac{1}{4}) \\h(x)=4(x^2+x+\frac{1}{4})\\h(x) = 4(x+\frac{1}{2})^{2}

8 0
2 years ago
7 + X = 2x - 5<br> 7<br> Solve<br> 3
Anna11 [10]

Answer:

x=12

Step-by-step explanation:

7+x=2x-5

12=1x

x=12

8 0
2 years ago
If AD=20 and AC=3x+4, find the value of x. Then find AC and DC.<br><br> I don't understand.
Fofino [41]
<span>Using the information we have 3x+4=40 Do the same to each side of the equation to eliminate for x. 3x+4=40 Minus 4 from each side 3x=40-4 3x=36 Divide 3 from each side x=36/3 x=12 AC=3x+4 insert the value of x 3(12)+4=40 AC=40 AD=20</span>
5 0
3 years ago
What is the volume of this rectangular prism?
wariber [46]
The answer would be 56
3 0
3 years ago
three bags of packing peanuts are used to fill 2 boxes how many bags of packing peanuts does each box use between which two whol
fredd [130]
No it does not, it does not lie.

3 0
3 years ago
Read 2 more answers
Other questions:
  • The directrix of a parabola is y=−4y=−4 . The focus of the parabola is (−2,−2)(−2,−2) .
    5·1 answer
  • Jon is decorating a panner for a parade. Jon uses a piece of red ribbon witch is 3 4ths yard long. Jon also needs blue ribbon th
    8·1 answer
  • What is angle F to the nearest degree?
    13·1 answer
  • Can someone answer this question pls!
    12·1 answer
  • From the hay loft door, Ted sees his dog on the ground. The angle of depression of the dog is 40º. Ted's eye level is 16 feet ab
    6·1 answer
  • Write an equation in slope-intercept form for the line parallel to y=5*x-2 that passes through the point (6,-1).
    11·1 answer
  • Divide £56 in a ratio of 4:3
    10·2 answers
  • Jim leaves the gym running 5 mph. Ten minutes later Bob leaves the gym on his bike traveling at a speed of 8 mph. how long will
    8·2 answers
  • Please help I need you​
    8·2 answers
  • he value of a piece of machinery, in dollars, after t years is described by the function below. f(t)=12,500−1,600t What is the v
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!