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
posledela
3 years ago
14

The Customer Service Center in a large New York department store has determined that the amount of time spent with a customer ab

out a complaint is normally distributed, with a mean of 10.1 minutes and a standard deviation of 2.8 minutes. What is the probability that for a randomly chosen customer with a complaint, the amount of time spent resolving the complaint will be as follows. (Round your answers to four decimal places.)(a) less than 10 minutes (b) longer than 5 minutes (c) between 8 and 15 minutes
Mathematics
1 answer:
Paul [167]3 years ago
4 0

Answer:

0.6395 ; 0.9657 ; 0.7333

Step-by-step explanation:

Given that:

Mean (m) = 10.1

Standard deviation (s) = 2.8

Obtain the following probabilities :

a) less than 10 minutes

P(x < 10)

Z = (x - m) / s

Z = (10 - 10.1) / 2.8

Z = 0.1 / 2.8

Z = 0.0357142

P(Z < 0.357) = 0.6395 ( Z probability calculator)

(b) longer than 5 minutes

P(x > 5)

Z = (x - m) / s

Z = (5 - 10.1) / 2.8

Z = −1.821428

P(Z < - 1.821) = 0.9657 ( Z probability calculator)

(c) between 8 and 15 minutes

P(8 < x < 15)

P(x < 8)

Z = (x - m) / s

Z = (8 - 10.1) / 2.8

Z = − 0.75

P(Z < - 0.75) = 0.22663 ( Z probability calculator)

P(x < 15)

Z = (x - m) / s

Z = (15 - 10.1) / 2.8

Z = 1.75

P(Z < 1.75) = 0.95994 ( Z probability calculator)

P(Z < 1.75) - P(Z < - 0.75)

0.95994 - 0.22663 = 0.7333

You might be interested in
How do you write 56% as a fraction in simplest form?
Alecsey [184]
56% can be represented with 56/100. That fraction can be reduced (or simplified) to 14/25.
3 0
3 years ago
How do you solve for X?<br> BD= 5x+3 AE= 4x+18
Kaylis [27]
Hope this helps :)))

6 0
2 years ago
How can I find list price, selling price, and the discount?
solong [7]

List price is the price which is showcased for users for the purpose of  customers to buy.

List price may be above or below the cost price of the item as per the need of the seller.

Selling price is the price at which an item is sold by the seller. Selling price can be different from list price as there may be discount from the list price.

Selling price above or below cost price is required to find profit or loss on the item.

Discount is the percent deduction on the list price or selling price which is offered to the customer to buy a particular item. Discount is usually less than selling price or list price as it is a depreciation from the actual value.

Disclaimer: No value has been provided for the calculation of the value and hence definition has been given.

For further reference,

brainly.com/question/2263474?referrer=searchResults

#SPJ9

8 0
2 years ago
Tix on sale at 35% reg is 210$ how much is discount
Lorico [155]
210/35% in the calculator it’s 135.50
6 0
3 years ago
Read 2 more answers
Triangle ABC has vertices of A(-6, 7), B (4, -1), and C (-2, -9). What is the length of the median from angle B?
jeka94
Coordinates of the midpoint of AC:
M ( (-6-2) / 2) , ( 7-9 ) /2 ) = ( -4, -1 )
d ( BM ) = √ ( 4 + 4 )² + ( -1+ 1 )²
d ( BM ) =   √  8 ²  =√ 64 = 8
The length of the median from angle B is 8.
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the perimeter of a rectangle with sides 7 inches and 10 inches?
    6·2 answers
  • I need help plz!!!!!!!
    8·1 answer
  • Determine if the graph is symmetric about the x-axis, the y-axis, or the origin.
    12·2 answers
  • Solve the proportion using equivalent ratios. Explain the steps you used to solve the proportion, and include the answer in your
    13·2 answers
  • What's the area of a square picture with 16 inch sides
    6·2 answers
  • Thomas has a vegetable garden. During the summer he grew 582 vegetables.
    13·1 answer
  • Please help asap will mark brainliest if I can and if it's right.
    5·1 answer
  • 1.22. If 0 and b?<br> A. b = 90° - a<br> B. b = 90° + a<br> C. b = 180° – a<br> D. b = 180° + a
    14·2 answers
  • What is the image of ( 0 , -6 ) after a reflection over the line y = x?
    12·1 answer
  • Please someone help me this is important!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!