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
gladu [14]
3 years ago
10

In a data set with mean of 12 and standard deviation of 4, at least what percent of data falls between 4 and 20?

Mathematics
1 answer:
Whitepunk [10]3 years ago
7 0

Answer:

At least 95% of data falls between 4 and 20.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 12

Standard deviation = 4

At least what percent of data falls between 4 and 20?

4 = 12 - 2*4

So 4 is two standard deviations below the mean

20 = 12 + 2*4

So 20 is two standard deviations above the mean

By the Empirical Rule, at least 95% of data falls between 4 and 20.

You might be interested in
How do i find the measure of an interior angle of a regular polygon with 12 sides
Blizzard [7]
What grade are you?
i can hopple u 
5 0
3 years ago
The volume of the cone is 25.12 the height is 6 what is the area of the base​
Gnoma [55]

Answer:

153.94

Step-by-step explanation:

AB=πr2=π·72≈153.93804

8 0
2 years ago
Read 2 more answers
How many tenths are in 13.58
Naily [24]
Tenths is after the decimal so the tenths is 5.
3 0
3 years ago
2/5 miles in 1/4 hour what is the speed in miles per hour
Pepsi [2]
I think its 1/10 miles/hour
8 0
2 years ago
What is the factoring?
Zigmanuir [339]
I hope this helps you

6 0
3 years ago
Other questions:
  • Y=–x1/2 + 4 x + 2y =–8 How many solutions does this linear system have?
    15·1 answer
  • Solve the equation<br><br> -12 = x - 1 + 28
    10·2 answers
  • How is subtracting-4x from 9x similar to subtracting -4 from 9?
    6·1 answer
  • PLEASE HELP
    13·1 answer
  • A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing 132 pounds requires
    13·1 answer
  • How do you prove that infinite sequences converge? For example how did someone prove that 1 + 1/4 + 1/9 + 1/16 + 1/25 ..... conv
    9·1 answer
  • Please help!! Im super confused
    12·1 answer
  • Select the best real-world situation that can be represented by 15 + c = 18.50. Then solve the equation and describe what your a
    11·1 answer
  • I need help with this
    12·1 answer
  • According to this diagram, what is tan 62°?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!