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
zhannawk [14.2K]
3 years ago
11

The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mea

n of: μ = 473 and a standard deviation of: σ = 28. According to the standard deviation rule, almost 0.15% of the students spent more than what amount of money on textbooks in a semester?
Mathematics
1 answer:
Archy [21]3 years ago
6 0

Answer:

Step-by-step explanation:

Given data:

\mu = 473

standard deviation is \sigma=  28

As distribution is normal in shape and values are symmetrical

The standard deviation rule says that 95% of observation lies between the second standard deviation of the mean

so, approximately only 5% of observation lies outside the interval and normal shape is symmetric. hence approximately 0.15% of observation lies above the interval

             = \mu + 2\times \sigma

             = 473 + 2\times 28 = 529

almost 0.15% of students spent more amount is 529

You might be interested in
Which sentence can represent the inequality
polet [3.4K]
C might be the correct answer try it :)
7 0
2 years ago
What is the equation of the line given the table
OLEGan [10]

Answer:

y=3x-1

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
I’m thinking it’s 13? But need someone to clarify if I’m correct!?
Papessa [141]

Answer:

It's 13

Step-by-step explanation:

Well, just use the triangle inequality theorem and pay close attention to angles CAB and EAC... that's all I can say

Hope that helped

8 0
2 years ago
A farmer makes a pen for his animals with a total perimeter of 46 feet. (see diagram)
ratelena [41]
Yes I love this problem so good
5 0
3 years ago
19. (3,5), (2,-2)
Viktor [21]

Answer:

y=7x−16       the answer ;)

8 0
2 years ago
Other questions:
  • the two guy wires supporting a tower form an isosceles triangle with the ground. each of the base angles of the triangle is 4 ti
    8·1 answer
  • How many 1/4litre packets of milk can be filled from a container holding 5 litres ?
    11·1 answer
  • Country A produces eight times the amount of diamonds in carats produced in country B. If the total produced in both countries i
    14·1 answer
  • In the diagram, DG I EF
    6·1 answer
  • In how many ways can you spell the word ROOM in the grid below? You can start on any letter R, then on each step you can step on
    7·2 answers
  • 54.4% of tickets sold to a movie are sold with a popcorn coupon, and 45.6% are not. You want to calculate the probability of sel
    12·1 answer
  • Belvedere peeled one third of an orange in one sixth of a minute. Find
    12·1 answer
  • I don’t understand how I get this answer
    6·2 answers
  • Hello! Please help me with this question. I’ll mark brainly! Thank you :)
    12·1 answer
  • Lisa is saving $50 that she received from her grandmother. She earns $6 each time she walks her neighbor's dog, which she also s
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!