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
bija089 [108]
3 years ago
15

For this set of data, 89, 88, 84, 87, 89, 84, 84, 83, 85, 89, 84 Find the standard deviation

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
6 0

Answer: 2.2962419891482

Step-by-step explanation: First get the mean of the numbers or the average

the mean in this case is 86

then subtract each number by the mean of 86

the numbers then become : 3, 2, -2, 1, 3, -2, -2, -3, -1, 3, -2

then square all the numbers to get : 9, 4, 4, 1, 9, 4, -4, 9, 1, 9, 4

then find the mean of those numbers which is 5.2727272727273

then find the square root of this number to find the standard deviation

2.2962419891482 is the standard deviation

hope this helps mark me brainliest if it helped

You might be interested in
The letter b represents a nonzero constant. Solve 2bx-bx= -8 for x?
zhuklara [117]

Answer:

x = -8/b

Step-by-step explanation:

2bx-bx= -8

bx = -8

Divide by b since b is nonzero

x = -8/b

3 0
3 years ago
In the diagram, point D divides line segment AB in the ratio of 5:3. If line segment AC is vertical and line segment CD is horiz
KIM [24]

Answer:

D

Step-by-step explanation:

First, find the coordinates of pointD if A(2,-6), B(10,2) and point D divides line segment AB in the ratio of 5:3.

If point D divides the segment AB in the ratio m:n, then

D\left(\dfrac{nx_A+mx_B}{m+n},\dfrac{ny_A+my_B}{m+n}\right)

So

D\left(\dfrac{3\cdot 2+5\cdot 10}{5+3},\dfrac{3\cdot (-6)+5\cdot 2B}{5+3}\right)=D(7,-1)

Point C has the x-coordinate the same as point A and the y-coordinate the same as point D.

Thus, C(2,-1)

5 0
3 years ago
Read 2 more answers
Determine the equivalent system for the given system of equations.<br> 4x - 5y = 2<br> 3x - y = 8
kondor19780726 [428]
4x − 5y = 2
7x + 6y = 10
4 0
3 years ago
The graph below shows the quadratic function f, and the table below shows the quadratic function g.
valkas [14]
I think the correct answer is D), I’m sorry if it’s wrong
5 0
3 years ago
Solve x2 - 8x = 3 by completing the square. Which is the solution set
Simora [160]

Answer:

4\pm\sqrt{19}

Step-by-step explanation:

Move everything to left side

x^{2} -8x -3 =0

Now to solve this square equation we need to find Descriminant

D=b^{2} -4ac=64+12=76

As Descriminant D is greater than 0 then we have 2 solutions which we can calculate by this formula

x_{1,2}=\frac{-b\pm\sqrt{D}}{2a} =\frac{8\pm2\sqrt{19}}{2}=4\pm\sqrt{19}

3 0
3 years ago
Other questions:
  • What is 55&gt; -7v +6 plzz help, this my homework
    5·1 answer
  • The pressure P (in pounds per square foot), in a pipe varies over time. Ten times an hour, the pressure oscillates from a low of
    7·1 answer
  • Please help me with 25-29!!
    12·1 answer
  • What’s the answer? I really need help!!!
    7·1 answer
  • A scientist used 2 gallons of liquid for every 3 hours he works. He uses __ of a gallon each hour he works.
    5·1 answer
  • A cleaning company charges x dollars per hour to clean floors and y dollars per hour to clean the rest of a house.
    9·2 answers
  • Carla has a dog walking service and makes $9 for every day works walking dogs. One week, she was sick and could only walk the do
    11·1 answer
  • Can someone help me privately
    13·1 answer
  • Cole threw 50 darts. Here are his results Orange 29, Green 15, Blue 5, and Red 1 Calculate the experimental probability for each
    11·1 answer
  • Find the reminder when x³-ax²x³-ax²-6x-a is devided by x-a​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!