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
UNO [17]
3 years ago
6

Set of data has a normal distribution with a mean of 56 and a standard deviation of 7. Find the percent of data within the follo

wing interval.
from 35 to 77

SOMEONE PLEASE HELP
Mathematics
1 answer:
makvit [3.9K]3 years ago
7 0

Answer:

.99815

which is about

99.815%

Step-by-step explanation:

we are looking for 35<x<77

We need to find (what I think is called) the z score which is acheieved through what I'm pretty sure is called standardizing

What we do is subtract the mean and then divide by the standard deviation

so for 35 we have

(35-56)/7= -3.29

due to the fact that the normal distribution is symmetric this is equal to 1-p(3.29)

to find p(3.29) grab a ztable and get p(3.29)= .9995

1-.9995= .0005

For 77 we have

(77-56)/7=3

grab a ztable and find the 3= .99865

Finally subtract these two to get the final answer

.99865-.0005= .99815

You might be interested in
I hope someone can help me here please don't answer nonsense!​
Karolina [17]

Answer:

30 degrees

Step-by-step explanation:

Angle B is an inscribed angle -- its vertex is on the circle and it intersects the circle in two points, <em>A</em> and <em>C</em>.

The measure of an inscribed angle is always one half the measure of the intercepted arc.  The intercepted arc has measure 60 degrees, so the measure of angle B is 30 degrees.

8 0
2 years ago
Macys is having a sale on all shoes, if I buy a pair of boots that are $125 but are now 30% off what is the sale price of the bo
natita [175]
$87.5 because 30% of 125 is 37.5 so 125-37.5 is 87.5
8 0
3 years ago
If f(x)=5x-7,what isf(3)?​
ArbitrLikvidat [17]

Answer:

Explanation:

f  (  − 3 )  basically means substitute  − 3  for  x  in the function  − 5 x

f

(

−

3

)

=

−

5

(

−

3

)

−

7

f

(

−

3

)

=

15

−

7

f

(

−

3

)

=8

Step-by-step explanation:

4 0
3 years ago
A rectangular, above-ground swimming
gregori [183]
The answer is A. 158 lbs
3 0
3 years ago
What is the diameter of a cone with height 8 m and volume 150xm3?
Reika [66]
On google, it says 8.463.
6 0
4 years ago
Read 2 more answers
Other questions:
  • Find the number that should be added to the expression to make it a perfect square. k^2-5k
    7·1 answer
  • Convert 12 over 5 to a decimal using long division.<br><br> 1.2<br><br> 2.4<br><br> 2.6<br><br> 3.4
    12·2 answers
  • Best answer gets a Brainliest!
    6·1 answer
  • Is my answer right can you check my answer We have to use dividend, divisor, equation, fraction, and quotient
    12·2 answers
  • Juan is making a model out of rhombi. Each rhombus will be connected to the one before it. Each rhombus will be 6 inches tall an
    13·1 answer
  • Please help <br> i’ll mark brainlyest
    6·2 answers
  • Each bag of rocks for an aquarium costs $12.35. Which equation best represents y, the total cost of x bags of rocks?
    9·1 answer
  • E/P 14)The equation 2x²+ 4kx - 5k = 0, where k is a constant, has no real roots.
    12·1 answer
  • How many solutions does y=7x-4 have
    7·1 answer
  • Please help me with this
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!