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
zaharov [31]
3 years ago
6

The mean of a normal probability distribution is 500 and the standard deviation is 10. about 95 percent of the observations lie

between what two values?
Mathematics
1 answer:
PIT_PIT [208]3 years ago
5 0

Answer:

So about 95 percent of the observations lie between 480 and 520.

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 deviations of the mean.

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

In this problem, we have that:

The mean is 500 and the standard deviation is 10.

About 95 percent of the observations lie between what two values?

From the Empirical Rule, this is from 500 - 2*10 = 480 to 500 + 2*10 = 520.

So about 95 percent of the observations lie between 480 and 520.

You might be interested in
The​ ____ is another term for the arithmetic average.
antiseptic1488 [7]

The answer is the mean.

"For a data set, the arithmetic mean, also called the mathematical expectation or average, is the central value of a discrete set of numbers: specifically, the sum of the values divided by the number of values."- Wikipedia

3 0
3 years ago
Solve for h and c to find what h and c equals; 34.50=4h+7c and 30.50=8h+3c
Irina18 [472]
34.5=4h+7c
(34.5-7c)/4=h
Put h= (34.5-7c)/4 into another equation
30.5=8h+3c
30.5=2(34.5-7c)+3c
30.5=69-14c+3c
11c=38.5
c=38.5/11
Put c=38.5/11 into one of the equations
to calculate the h.


4 0
3 years ago
3/4 = j−12.<br><br> Algebra
Studentka2010 [4]
First, we simplify this to 3/4-j/12=0. 4/4=1 so we do, -j=-51/4*-1. Therefore, the answer is j=51/4. Hoped I helped. :)
6 0
3 years ago
Read 2 more answers
-(-3,-2) and (1,6); m = 2<br> Plz help me
tensa zangetsu [6.8K]

m

=

−

2

,  (

3,

5

)

Find the value of  b

using the formula for the equation of a line.

b

=

11

Now that the values of  

m  (slope) and  b

(y-intercept) are known, substitute them into  

y

=

m

x

+

b  to find the equation of the line.   y

=

−

2

x

+

11

5 0
3 years ago
The spinner is divided into 10 equal sections
Olenka [21]

Answer:

A) spinning a number less than 3

B) spinning a 4 or 5

D) Spinning a number greater than 8

Step-by-step explanation:

You want to choose the ones where there are two outcomes.

A) spinning a number less than 3

B) spinning a 4 or 5

D) Spinning a number greater than 8

7 0
2 years ago
Read 2 more answers
Other questions:
  • The sum of three numbers is 3. if the second number is subtracted from the sum of the first and third numbers, the result is 9.
    14·1 answer
  • Eli, Freda and Geoff were given ?800 to share in the ratio of their ages. Eli is 9 years old,Feda is 13 years old and Geoff is 1
    15·2 answers
  • Having trouble with this...
    5·1 answer
  • Can someone help with #3 and show your work !!
    10·2 answers
  • Which names the opposite and absolute value of -9
    13·2 answers
  • 5 times the sum of 12 and a number is 80<br> What is the value of the unknown number
    6·1 answer
  • In a probability experiment Eric flipped a coin 30 times the coin landed on heads 20 times what is the ratio of heads to tails i
    5·2 answers
  • 5 x f(1) + 5 x g(9)​
    6·1 answer
  • The base of a ladder is placed 6 ft from the bottom of the house. The ladder touches the
    12·2 answers
  • PLEASE HELPPPP!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!