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
scoray [572]
3 years ago
13

PLSSSSSSSSSSS HEEEEEELP????The mean of a set of normally distributed data is 600 with a standard deviation of 20. What percent o

f the data is between 580 and 620?
Mathematics
2 answers:
grin007 [14]3 years ago
8 0

Answer:

The percentage of the data between 580 and 620 is 68.26 %

Step-by-step explanation:

Given,

Mean, \mu = 600,

Standard deviation, \sigma = 20,

Using the equation,

z-score=\frac{x-\mu}{\sigma}

Z-score for the data 580 = \frac{580-600}{20}

=\frac{-20}{20}

=-1

While, the z-score for the data 620 = \frac{620-600}{20}

=\frac{20}{20}

=1

Using normal distribution table,

P(580 < z) = 0.1587

Also, P(620 > z) = 0.8413

Hence, the percent of the data is between 580 and 620 = P(620 > z)  - P(580 < z)

= 0.8413  - 0.1587

= 0.6826

= 68.26 %

Ivanshal [37]3 years ago
6 0
Z = (X-Mean)/SD 
<span>z1 = (580-600)/20 = - 1 </span>
<span>z2 = (620-600)/20 = + 1 </span>
<span>According to the Empirical Rule 68-95-99.7 </span>
<span>Mean +/- 1*SD covers 68% of the values </span>
<span>Therefore, required percent is 68%
hopes this help :) :D :)</span>
You might be interested in
The ________ identifies the number of standard deviations a particular value is from the mean of its distribution.
Troyanec [42]

Answer:

z-score

Step-by-step explanation:

5 0
2 years ago
What are the missing operations?
Ronch [10]

Answer:

Solution in photo

Step-by-step explanation:

6 0
2 years ago
A.) SSS<br><br> B.) AAS<br><br> C.) ASA<br><br> D.) SAS
Vlada [557]

Side BC is congruent to side BC.

Using the congruent angles and the angle bisectors, you can get two angles congruent to two other angles, so you use ASA to prove the triangles congruent. Then you use CPCTC to prove the sides congruent.

Answer: C.) ASA

7 0
3 years ago
What percent is represented by the diagram
Firdavs [7]

Answer:

180%

Step-by-step explanation:

A full box shaded in plus 80% of another box is 180%.

4 0
2 years ago
Read 2 more answers
Help with last math question!! <br> Will mark and star!! <br> ⚓ (&gt;‿◠)✌
muminat
The answer is either B or D
6 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP NOW I WILL MARK BRAINLYST IF CORRECT What property of equality is demonstrated below? 2 + (5 + 6) = (2 + 5) + 6
    15·1 answer
  • Nicole has a bag of round buttons. She measured the diameter of each button to the nearest eighth of an inch
    11·1 answer
  • Describe the motion in the graph below.
    6·2 answers
  • Can anyone solve this?
    5·1 answer
  • Use the distributive property to write an expression equivalent to 5 x 3/4)
    10·1 answer
  • Given f(x)=3x2−5x−2 .<br><br> What is the value of f(−23) ?
    10·1 answer
  • What is the exact area of a circle with radius 8 inches?
    9·2 answers
  • The workers at the help line answers 24 phone calls every 2hours how many phone calls do the workers answer in 8hours
    8·1 answer
  • How many different 5-digit whole
    8·1 answer
  • The table shows the ratio of tables to chairs in a classroom.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!