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
Nostrana [21]
3 years ago
14

Find the standard deviation of the following set of data (1.2, 2.3, 5.2, 6.6, 4.8)

Mathematics
1 answer:
Vesna [10]3 years ago
8 0

Answer:

<u>The correct answer s B. 2.21</u>

Step-by-step explanation:

There are three steps to calculate the standard deviation of the set of data given.

n = 5 (5 numbers in the set)

1. Calculate the mean, this way:

(1.2 + 2.3 + 5.2 + 6.6 + 4.8)/5 = 20.1/5 = 4.02

μ = 4.02

2. Calculate the variance, this way:

Sum of the squared difference between each number of the set and the mean divided by the number of elements of the sample minus one.

[(1.2 - 4.02)² + (2.3 - 4.02)² + (5.2 - 4.02)² + (6.6 - 4.02)² + (4.8 - 4.02)²]/4 =

19.568/4 = 4.892

σ² = 4.892

3. Finally, the standard deviation. this way:

Standard deviation is the square root of the variance.

σ² = 4.892

√σ² = √4.892

σ = 2.21

<u>The correct answer s B. 2.21</u>

You might be interested in
A 30-foot pole is stabilized by a wire attached to the ground 10 feet from the base of the pole. how long is the wire?
Leya [2.2K]

Answer:

height of the pole is 16.1

6 0
3 years ago
Insert four arithmetic means between -1 and 14
34kurt

Answer:

Step-by-step explanation:

d = 7%2F2

-2, -2+7%2F2, -2+2%287%2F2%29, -2+3%287%2F2%29, 12

-2, -4%2F2+7%2F2, -4%2F2+14%2F2, --4%2F2+21%2F2, 12

-2, 3%2F2, 10%2F2, 17%2F2, 12

 

-2, 3%2F2, 5, 17%2F2, 12

5 0
3 years ago
The outer layer of the Earth is called the
aksik [14]
Crust is the answer  
5 0
3 years ago
2/3 * 1/2 i need to know this answer
Nataly [62]
0.33333333 repeating

6 0
3 years ago
Read 2 more answers
Can someone help me part 2
Otrada [13]

Step-by-step explanation:

y = ¼x + 2

m1 = ¼

m of line perpendicular = m2

the formula is : m1×m2 = -1

=> m2 = -1 ÷ m1

= -1 ÷ ¼ = -4

so, the equation is :

y = -4x - 7 (option A)

3 0
2 years ago
Other questions:
  • Bakery had 54 rolls 1/6 sold in morning
    9·1 answer
  • 30 POINTS!!!
    12·2 answers
  • Confused can someone help pls
    6·1 answer
  • A quality control officer randomly checking weights of pumpkin seed bags being filled by an automatic filling machine. Each bag
    6·2 answers
  • Plz plz plz plz plz plz plz help help help me plz help me I’m begging you plz help me plz
    10·2 answers
  • Tabitha is trying to find the equation of a line perpendicular to y = 1 over 2x − 5 in slope-intercept form that passes through
    9·2 answers
  • The zoo had 20 successful roadrunner births. Unfortunately 15% of them died from heat exhaustion. How many survived?
    5·2 answers
  • A machine can manufacture 1,805 nails in 10 minutes.how many nails can the machine make in 8 minutes?​
    15·1 answer
  • Consider a tank with a capacity of 1000 ` and initially contains 400 ` of solution
    5·1 answer
  • What is the area of a triangle<br> that has a base of 8 inches and<br> a height of 3 2/5 inches?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!