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
tankabanditka [31]
3 years ago
10

459 randomly selected lightbulbs were tested in a laboratory 291 lasted more than 500 hours find a point estimate of the true pr

oportion of all lightbulbs in that last more than 500 hours
Mathematics
1 answer:
BARSIC [14]3 years ago
4 0
291:459 or 291/459 it is the amount lasted to the total amount
You might be interested in
Three students scheduled interviews for summer employment at the Brookwood Institute. In each case the interview results in eith
adoni [48]

Answer:

a. 8 outcomes

b. Discrete Variable

c. See explanation below

Step-by-step explanation:

a.

Let N = No Offers made

Let Y = Offers made

The Expected outcome are as follows:

NNN, NNY, NYN, YNN, NYY, YNY, YYN, YYY

= 8

b.

Let x = number of offers made

X is said to be discrete if x can take values that are restricted to a defined or limited values

X is said to be continuous if x can take a range of values that is not restricted to any range(i.e. continuous)

Looking at the brief description above, we can conclude that x is discrete

c.

NNN, 0

NNY, 1

NYN, 1

YNN, 1

NYY, 2

YNY, 2

YYN, 2

YYY, 3

Where 0 to 3 represents number of offers at every instance

5 0
3 years ago
The sale price of every item in a store is 85% of its usual price.
Vladimir [108]

Answer

a. The backpack is $4.50

b. The sweatshirt is $2.70

Step-by-step explanation:

a. 30 x 0.15 = 4.50 (The 0.15 is from the price you are actually paying for the item. Because the item is 85% off, you are paying for 15% of the usual price. 15% as a decimal is 0.15 so you multiply that to the original price to find the amount u will pay.)

b. 18 x 0.15 = 2.70  

5 0
3 years ago
(3x3 – x2 – 2x - 10) = (x - 2)<br> 2 si
GREYUIT [131]
2 is the correct answer
6 0
3 years ago
What is the simplified form of the expression?
Oduvanchick [21]

Answer:

the third one

6a^{5} - 3a^{3} - 5a^{2} - 3b^{3}

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Samantha saw 60 people.
Tanzania [10]
People like green shirts better‍♀️
3 0
3 years ago
Other questions:
  • The last answer I got for this was not help full. Please help. Will give brainliest.
    14·1 answer
  • Question 5 I would greatly appreciate help. Click the picture to enlarge
    11·1 answer
  • Help meh ahhh it said had to put over 20 words don't judge me
    7·1 answer
  • Help!!!!!! Find the center and radius of the circle.
    9·1 answer
  • Wisal buys a car for £19000.
    11·1 answer
  • A board that measures 3/4 feet long is cut into 6 equal pieces. What is the length of each piece?
    12·2 answers
  • The​ quality-control manager at a compact fluorescent light bulb​ (CFL) factory needs to determine whether the mean life of a la
    8·1 answer
  • 2. Given AMAR, solve for the m&amp;M. Round to the
    15·1 answer
  • Write the following expression as a function of a positive acute angle. tan 245
    14·1 answer
  • Standardized Test Practice
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!