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
Zigmanuir [339]
2 years ago
7

Need help will mark brainliest...

Mathematics
1 answer:
Xelga [282]2 years ago
4 0

Answer:

Step-by-step explanation:

Step-by-step explanation:

The given data set is:

Week 1: 600

Week 2: 300

Week 3: 500

Week 4: 900

The following are the steps to find the standard deviation:

Step 1. Jim enters the data and calculates the average or mean.

Step 2. Jim calculates the deviation from the mean by subtracting the mean from each value.

Data value (x)                                                              

600                                                                           25

300                                                                         -275

500                                                                         -75

900                                                                          325

Step 3. Jim squares each deviation to remove negative signs.

Data value (x)                                                            

600                                                                       625

300                                                                    75625

500                                                                      5625

900                                                                   105625

Step 4. Jim sums the squares of each deviation and divides by the count for the variance.

Step 5.Jim takes the square root of the variance to find the standard deviation.

You might be interested in
a cell phone company has a basic monthly plan of $40plus $0.45 for many minutes ised over 700. John was charged a total of $48.1
jonny [76]
Cost of month plan = $40

Cost of minutes used = $0.45 after 700 minutes

Total cost = $48.10

Let x be the total minutes used
Total cost = 40 + 0.45(x - 700)

------------------------------------------------------------------
Form the equation and solve x
------------------------------------------------------------------
40 + 0.45(x - 700) = 48.10
40 + 0.45x - 315 = 48.10
0.45x - 275 = 48.10
0.45x = 48.10 + 275
0.45x = 323.10
x = 323.10 ÷ 0.45
x = 718

------------------------------------------------------------------
Answer: John had used 718 mins this month
------------------------------------------------------------------
8 0
3 years ago
Select equivalent or not equivalent for each pair of expressions
marissa [1.9K]

Answer:

1: equivalent

2: equivalent

3: not equivalent

Step-by-step explanation:

for 1 & 2, you just switch the terms, but for 3, the 6z is not negative in the first expression, but it is in the second.

3 0
2 years ago
The residents of a city voted on wether to raise property taxes. The ratio of yes votes to no votes was 5 to 6. If there were 84
Dafna1 [17]

Answer:

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 4 to 7 . If there were 10,725 total votes .

Step-by-step explanation:

4 0
3 years ago
Now examine |a + bi| and complete the definition below. The absolute value of any complex number a + bi is the from (a, b) to (0
sergejj [24]
Distance

|a+bi| is the length of the vector from origin to (a,b).

|a+bi| = \sqrt{a^2 + b^2}
8 0
3 years ago
Read 2 more answers
A multiple regression model has the form = 5 + 6x + 7w as x increases by 1 unit (holding w constant), y is expected to
Hoochie [10]
As x increases, [y] is expected to increase.
4 0
3 years ago
Other questions:
  • What are common mutipiles of 5 and 8
    14·1 answer
  • For each system of equations, drag the true statement about its solution set to the box under the system.
    7·1 answer
  • a circular fountaind in a park is 30 feet in diameter. A park employee will plant marigolds around it. What is the radius of the
    6·2 answers
  • Determine the intercepts of the line.
    13·2 answers
  • This year, 12,376 phone calls were made for an annual fund raising event.last year ,9,009 phone calls were made.How many more ca
    12·2 answers
  • Y=4x/2<br> Find y when x<br> is -2, -1, 0, 1, 2
    11·2 answers
  • HELP THIS IS A EMERGENCY please tell me all of it (it’s for my cousin in 5th grade)
    13·2 answers
  • 8. What is the equation of the line that passes through the points (0,5) and (1,7)
    14·1 answer
  • Priya drew a circle whose area is 25 cm. Dan drew a circle whose diameter is 4 times the radius of Priya's circle. How many time
    13·1 answer
  • A truck driver has to make a delivery at a location that is 230.2 miles away. She drives an average of 55 miles each hour for 3.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!