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
NikAS [45]
3 years ago
14

Sample annual salaries (in thousands of dollars) for public elementary school teachers are listed. Find the sample standard devi

ation. Round to two decimal places if necessary
23.9
15.3
40.2
30.3
21.0
22.8
ID: ES6L 2.4.1-9+
Mathematics
1 answer:
faust18 [17]3 years ago
7 0

Answer:

The standard deviation is 9.34

Step-by-step explanation:

First we need to find mean of the sample:

m=(23.9+15.3+40.2+30.3+12+22.8)/6=24.08

Standard deviation will be like below:

d=\sqrt{(x-m^2)/6}=9.34

You might be interested in
The vertex angle of an isosceles triangle measures 42°. A base angle in the triangle has a measure given by (2x + 3)°. What is t
larisa [96]

An isosceles triangle is one in which 2 angles have similar measure while the other one is different. In this case, the 2 vertex angles have a measure of 42 degrees, therefore the third angle which is equal to (2x + 3) is:

(2x + 3) + 42 + 42 = 180

2x + 3 = 96

<span>x = 46.5°</span>

5 1
3 years ago
Read 2 more answers
Convert 27day 8hour into second
Nataliya [291]
27 days and 8 hours = 656 hours
27 x 24 = 648
648 + 8 = 656
24 hours = 3,600 seconds
656 x 3,600 = 2,361,600 seconds

The answer is 2,361,600 seconds.
7 0
3 years ago
I need it now please help
gulaghasi [49]
B. A smaller percentage of second-lunch students (38%) eat outside.
5 0
3 years ago
All freshmen, sophomores, juniors, and seniors attended a
Trava [24]

Answer:

The probability is .034375 or 11/320

Step-by-step explanation:

the probability of a senior being chose first is 22 (seniors) divided my total number of students (80) is .275 percent.

multiplied by the probability of a sophomore being chosen 10/80 which equals .125.

multiply those together and you get your probability. 0.034375 or 11/320

5 0
3 years ago
Read 2 more answers
the largest of these five squares has side length 27 units, and each additional square's side length is 2/3 as large as the one
RoseWind [281]

The total area is 1289.41 units².

The total perimeter is 281.32 units.

<h3>What is the total area and perimeter?</h3>

The first step is to determine the side lengths of the other squares:

  • Length of the second square = 2/3 x 27 = 18
  • Length of the third square = 2/3 x18 = 12
  • Length of the fourth square = 2/3 x 12 = 8
  • Length of the fifth square = 2/3 x 8 = 5.33

Area of a square = length²

Perimeter of a square = 4 x length

  • Area of the first square = 27² = 729
  • Area of the second square = 18² = 324
  • Area of the first square = 12² = 144
  • Area of the first square = 8² = 64
  • Area of the first square = 5.33² = 28.41

Total area = sum of the areas of the 5 squares = 1289.41 units²

  • Perimeter of the first square = 4 x 27 = 108 units
  • Perimeter of the second square = 4 x 18 = 72
  • Perimeter of the third square = 4 x 12 = 48
  • Perimeter of the fourth square = 4 x 8 = 32
  • Perimeter of the fifth square = 4 x 5.33 = 21.32

Total perimeter = 281.32 units

To learn how a square, please check: brainly.com/question/9030544

#SPJ1

4 0
2 years ago
Other questions:
  • Triangle E F G is shown. Which statements regarding Triangle E F G are true? Select three options. E F + F G greater-than E G E
    9·2 answers
  • Which statement is true about the discontinuation of the function F(x)? F(x)=x+1/6x^2-7x-3
    5·1 answer
  • Carrie and Ryan have both computed the slope of the least-squares line using data for which the standard deviation of the x-valu
    10·1 answer
  • What does k^2 -8k-20=0
    15·2 answers
  • How do you model a decimal using a fraction 5th grade​
    10·1 answer
  • What is the next term in the sequence 58, 47, 36, 25, ...?<br> –58<br> –8<br> 14<br> 69
    5·2 answers
  • The base of a square prism has an area of 16 in. The
    11·2 answers
  • 22A + 14 help what is it
    9·1 answer
  • 10) Find the circumference of the circle.<br> Use a 3.14
    6·1 answer
  • What is the product of x and y
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!