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
KIM [24]
4 years ago
7

The mean is 18.1

Mathematics
1 answer:
julsineya [31]4 years ago
5 0
The standard deviation is 3.

The formula for a z-score is

z = (X-μ)/σ

Using our information, we have

-1.7 = (13-18.1)/σ

Multiplying both sides by σ, 
-1.7σ = 13-18.1
-1.7σ = -5.1

Divide both sides by -1.7:
-1.7σ/-1.7 = -5.1/-1.7
 σ = 3
You might be interested in
What equation models the data in the table if d = numb of days and c = cost?
anyanavicka [17]

Answer:

c=3d

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I'm totally lost. How do I do this?
Mkey [24]
Don't get confused by the "0.01 cm" that's just telling you to round to the hundredths place. Moving on, the shaded area's exterior shows us that it is a square. Meaning you do s^2 to find the area. So, you find the square root of 15 which is <span>3.87... This means the diameter is also 3.87 because the diameter is equivalent to the side's measurement. Divide 3.87 by 2 to find the radius, giving you 1.935. This represents OT's length. Now, just round to the hundredths giving you 1.94 cm. </span>
5 0
3 years ago
What is the scientific notation of 68000
Dmitry [639]
OOHHH!! I like sci not! Okay, so you take the decimal ( which in this case is at the end: 68000. ) and move it over as many times as needed until it gets in between the, in this case, 6 and 8. ( 6.8000 ). You need to show exactly how many times it was actually moved so you multiply that number time 10^ whatever place. In this question, it'll be to the 4th place because you move the decimal over 4 times. The answer will be 6.80 x 10^4 OR -written in short hand- 6.8x10E4 
8 0
3 years ago
Read 2 more answers
Write the two missing values to make these equivalent fractions correct : ?/3 = 8/12= 4/?
Elodia [21]
X/3 = 8/12
12 * x = 8 * 3
12x = 24
x = 2

8/12 = 4/y
8y = 48
y = 6
8 0
3 years ago
Suppose that the batting averages or AVG (hits per at-bat) of all players in the AAA baseball league are normally distributed wi
bulgar [2K]

Answer:

0.1

Step-by-step explanation:

Solving using empirical rule formula

95% of data falls within 2 standard deviations from the mean - between μ – 2σ and μ + 2σ .

Hence, the lower bound 95% =

μ - 2σ

Mean = 0.2

Standard deviation of 0.05

= μ - 2σ

= 0.2 - 2(0.05)

= 0.2 - 0.1

= 0.1

The lower bound is 0.1

6 0
3 years ago
Other questions:
  • Find the gcf of the numbers 18 using list of factors
    15·2 answers
  • Can you answer #1.Please due tomorrow 11-5-16
    10·1 answer
  • What is the missing side
    10·1 answer
  • As the radius of the wheel increases what happens to its circumference
    9·1 answer
  • Convert the following to mixed numbers
    6·2 answers
  • PLEASE HELP!!!
    14·1 answer
  • An athlete plans to run 3 miles each lap around the yard is 3/7 miles how may miles will the athlete run
    12·1 answer
  • Find the volume of a pyramid with a square base where the perimeter of the base is 13.4 in and the height of the pyramid is 7.6
    7·1 answer
  • 1. (a) Find the remainder when 5x2 – 3x + 6 is divided by 2x-1​
    14·1 answer
  • Need help please thank you if you help
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!