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
barxatty [35]
3 years ago
5

For a daily airline flight between two cities, the number of pieces of checked luggage has a mean of 380 and a standard deviatio

n of 20. What number of pieces of checked luggage is 3 standard deviations above the mean?
Mathematics
2 answers:
Helen [10]3 years ago
8 0

Answer:

The answer is 440 pieces of checked luggage

Step-by-step explanation:

Mean = 380

Standard deviation = 20

No. of pieces of checked luggage for 1 standard deviation = 20 pieces

Therefore, Mean for 3 standard deviations above the mean = 3 × 20 = 60

Now, number of pieces of checked luggage 3 standard deviations above the mean = Mean for 1 standard deviation + Mean for 3 standard deviations above the mean

⇒ 380 + 60 = 440 pieces

Olegator [25]3 years ago
3 0
<span>Since one standard deviation is 20 luggages, 3 standard deviations above the mean is 3*20=60 luggages above the mean of 380 luggages, so 60+380 gives the answer C, 440.</span>
You might be interested in
75 is what percent of 60
VLD [36.1K]
75 is 125% of 60. Hope this helps! :)
7 0
3 years ago
Which of the following choices can be used to check the answer in this equation?
Rainbow [258]

the answer is 110 + 95 = 205

8 0
3 years ago
Read 2 more answers
What is 5 divided by 1/4
velikii [3]
The answer is 20.

Hope this helps!! May I have brainliest?
4 0
3 years ago
Read 2 more answers
Find the center and radius of the circle whose equation is x 2 + y 2 + 10x − 1
Margaret [11]

we conclude that the center of the circle is the point (-5, 0).

<h3>How to find the center of the circle equation?</h3>

The equation of a circle with a center (a, b) and a radius R is given by:

(x - a)^2 + (y - b)^2 = R^2

Here we are given the equation:

x^2 + y^2 + 10x - 1 = 0

Completing squares, we get:

x^2 + 10x + y^2 = 1

Now we can add and subtract 25 to get:

x^2 + 10x + 25 - 25 + y^2 = 1\\\\(x + 5)^2 -25 + y^2 = 1\\\\(x + 5)^2 + (y - 0)^2 = 26

Comparing that with the general circle equation, we conclude that the center of the circle is the point (-5, 0).

If you want to learn more about circles:

brainly.com/question/1559324

#SPJ1

3 0
2 years ago
How to solve 11×11-6×17+4
almond37 [142]

use the order of operations for this equation.

multiplication comes first.

11(11) - 6(17) + 4

121 - 102 + 4

for addition and subtraction, order doesn’t matter.

121 - 102 = 19

19 + 4 = 23

answer = 23

8 0
3 years ago
Other questions:
  • The first four sequences are shown below 9,5,1,-3 which of the following functions best defines this sequence
    7·1 answer
  • 1 7/8 divided by 2 2/5
    7·1 answer
  • Which line is parallel to y=3/4x-3
    10·1 answer
  • HELLLLPPPPP!!!! DUE TODAY
    6·1 answer
  • A couple wants to have 5 kids. find the probability that they have at least one boy.
    6·1 answer
  • Watch help video In AUVW, the measure of ZW=90°, UW = 60, VU = 61, and WV = 11. What is the value of the sine of ZU to the neare
    12·1 answer
  • What is the other possible value of x<br> 4+4|2x-1|=12 <br><br> X=? X= 0.5
    10·2 answers
  • Simplify the polynomial and evaluate for the following values. x^2 yxy-xy^2xy if x=-3 and y=2 the simplified polynomial is = , T
    15·1 answer
  • QUESTION ON PIC‼️❓THX
    15·1 answer
  • How do you solve x for a triangle with 33 and 38 degrees?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!