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
Naya [18.7K]
2 years ago
6

Find the standard deviation of the data, 12, 19, 9.

Mathematics
1 answer:
jek_recluse [69]2 years ago
4 0

Answer:

4.19

Step-by-step explanation:

Find the mean:

\text{Mean}=\frac{12+19+9}{3}=\frac{40}{3}

Find the standard deviation:

\text{Standard Deviation}=\sqrt{\frac{(12-\frac{40}{3})^2+(19-\frac{40}{3})^2+(9-\frac{40}{3})^2}{3}}=\sqrt{\frac{158}{9}}\approx4.19

You might be interested in
0.5a − 0.3 = 5 (solve for a)
Alla [95]
0.5a - 0.3 = 5

Add 0.3 to both sides:

0.5a = 5.3

Divide both sides by 0.5:

a = 10.6
3 0
3 years ago
Read 2 more answers
Quadrilateral ABCD has vertices at: A(0,7),B(10,9),C(12,-1),D(2,-3)
Svetach [21]

Answer: the answer is c

Step-by-step explanation:

your welcome

7 0
3 years ago
If the needle below is spun twice and the letters are recorded both times , which of the following would be the probability it w
ANTONII [103]
2/3 is the correct answer
4 0
2 years ago
An orange has about 1/4 cup of juice. How many oranges are needed to make 2 1/2 cups of juice? Select all equations that represe
san4es73 [151]
A and D are correct. To understand this, you need to know that this scenario gives us a total (2 1/2 cups) and a part (1/4). When you have these 2 pieces of information you have either a division problem with a total divided into parts (choice D) or you have one part and a totol shown as a multiplication problem (choice A).
7 0
3 years ago
Read 2 more answers
Given fx) = 17- x2, what is the average rate of change in f(x) over the interval [1, 5]?
Andrei [34K]

Let [a, b] = the interval

The average rate of change can be found by using [f(b) - f(a)]/(b - a).

Let a = 1 and b = 5.

Let R = rate of change

17- x^2

R = [17 - 5^2] - [17 - 1^2]/(5 - 1)

R = [17 - 25] -[17 - 1]/4

R = [(-8) - (16)]/4

R = (-24)/4

R = -6

Done.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate t - v when t = 7 and v = (-3)
    10·2 answers
  • Using the given points, determine Δy. (-3, -5) and (0, 10) Δy = 3 Δy = 5 Δy = 13 Δy = 15
    7·1 answer
  • Find the probability that a Type A bulb lasts at least 300 hours and a Type B bulb lasts at least 400 hours.
    11·1 answer
  • What times itself equals 91,204
    15·1 answer
  • The formula F = ma shows the relationship between force, mass, and acceleration. Solve this formula for a.
    12·1 answer
  • calculate the volume of the prism by first finding the total number of half unit cubes that will fill it. there are 8 half unit
    6·2 answers
  • what is 0 + 0? I NEED HELP PLS RN RN IM GETTING GRADED ON THIS PLS HELP WILL MARK BRAINLIEST PLS HELP
    7·2 answers
  • List all the elements of the sample space for the following experiment:
    11·1 answer
  • a tank is 3/7 full of water.After removing 420 litres it became 12/35 full .how much can the tank hold when full? ​
    5·1 answer
  • Determine the slope and the y-intercept of the line represented by the equation y= -7/3×+3 slope: 7/9 ;y-intercept: 3 slope: 9/7
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!