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
spayn [35]
3 years ago
8

n a survey of 331 customers, 66 say that service is poor. You select two customers without replacement to get more information o

n their satisfaction. What is the probability that both say service is poor?
Mathematics
1 answer:
yaroslaw [1]3 years ago
4 0

Answer:

3.93% probability that both say service is poor

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The customers are chosen without replacement, and the order in which they are chosen is not important. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

What is the probability that both say service is poor?

Desired outcomes:

Two saying it is poor, from a set of 66. So

D = C_{66,2} = \frac{66!}{2!(66-2)!} = 2145

Total outcomes:

Two customers from a set of 331. So

T = C_{331,2} = \frac{331!}{2!(331-2)!} = 54615

Probability:

p = \frac{D}{T} = \frac{2145}{54615} = 0.0393

3.93% probability that both say service is poor

You might be interested in
This Data set represents the number
Deffense [45]

Answer:

The answer would be A. 1.25

4 0
3 years ago
Lanie's room is in the shape of a parallelogram. The floor of her room is shown below and has an area of 108 square feet. Lanie
dsp73

Answer:

Yes it would

Step-by-step explanation:

Lanie's room is in the shape of a parallelogram.

Lanie has a rectangular rug that is 6 feet wide and 10 feet long.

Area of a rectangle = Length × Width

Area of the rectangular rug = 10 feet × 6 feet

= 60 square feet

We are told that:

The floor of her room is shown below and has an area of 108 square feet.

Hence, the rug would fit on the floor of her room because it's area is within the area of the floor of her room.

7 0
2 years ago
Determine the slope and the y-intercept of the line represented by the equation y= -7/3×+3 slope: 7/9 ;y-intercept: 3 slope: 9/7
Mademuasel [1]

Answer:

slope ⟹ \:  -  \frac{7}{9}  \\ y  \:  intercept⟹ \: 3

Step-by-step explanation:

The standard form of this equation is

y = mx + c \\

m stands for the gradient or the slope, and c represents the y-intercept

y = mx + c \\ y =  -  \frac{7}{9} x + 3 \\ m =  -  \frac{7}{9}  \:  \\ and \:   \\  \: y \: intercept \:  = 3

7 0
2 years ago
Find the domain of the function. (enter your answer using interval notation.) f(x) = x + 4 x2 − 36
11111nata11111 [884]

Alright, lets get started.

The given function is :

f(x) = x + 4x^{2}  - 36

When we find the domain of any function, we consider the domian is set of input values for which function should remain real and defined.

In this given function , we have not given any points where function seems going undefined.

Hence the domain is : (-∞, +∞) : Answer

Hope it will help :)

8 0
3 years ago
Question c please, it’s about probabilities. i attached photo
Reil [10]

Answer:

200

Step-by-step explanation:

Assuming all of the pie chart sections are equal.

There are 5 equal sections so divide the 1000 spins by 5 and you get 200

6 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate the indefinite integral. (use c for the constant of integration.) tan6(θ) sec2(θ) dθ illustrate and check that your ans
    15·1 answer
  • School guidelines require that there must be at least 2 chaperones for every 25 students going on a school trip. How many chaper
    14·2 answers
  • -2 (a-4)+ 5a =-4<br> How do you find a’s value?
    7·1 answer
  • We know that atoms bond with each other forming new substances. How do these unions occur?
    8·1 answer
  • A point P has coordinates (-8, -2). What are its new coordinates after reflecting point P across the x-axis?
    11·1 answer
  • Find the power of <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B8%7D%20" id="TexFormula1" title=" \frac{3}{8} " alt=" \f
    13·2 answers
  • Each person in a large square occupies, on average, 2.5 sq. feet of space. Estimate the number of people that can comfortably st
    10·2 answers
  • The figure below shows segments KL and MN which intersect at point P. Segment KM is parallel to segment LN:
    5·2 answers
  • Writing a Linear Function to Model a Scenario Pedro works as a newspaper deliverer. He receives a base pay plus an additional am
    7·1 answer
  • Its for 7th grade plss help me
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!