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
GarryVolchara [31]
3 years ago
13

Taylor Swift wants to know the proportion of her fans who listened to her new single ME! within the first hour of it being relea

sed. In order to estimate this, she takes a sample of 150 of her fans and asks them if they listened to the song in this time period. Of the 150 fans, 135 of them (90%) responded that they did listen to the song during this time period. What is the parameter and what is its value
Mathematics
1 answer:
lara31 [8.8K]3 years ago
8 0

Answer:

The parameter is the population proportion of fans who  listened to her new single and has an estimated value of 90%.

Step-by-step explanation:

The parameter is a value that corresponds to a population, while an a value that corresponds to a sample is know as statistic.

She takes a sample to estimate, with a point estimate and probably with a confidence interval around this point estimate, the true proportion of fans who listened to her new single.

This is the paramater: the population proportion of fans who listened to her new single.

Its value comes from an estimation based on the sample proportion (point estimate).

The sample proportion is 90%, so we can estimate, as there is no bias, that the population proportion is also 90%.

You might be interested in
The probability that a single radar set will detect an enemy plane is 0.9. if we have five radar sets, what is the probability t
Readme [11.4K]

The probability that a single radar set will detect an enemy plane is 0.9. if we have five radar sets, what is the probability that exactly four sets will detect the plane?

Solution: The given random experiment follows binomial distribution with p=0.9,n=5

Let x be the number of radar sets that will detect the plane.

We have to find P(x=4)

P(x=4)=\binom{5}{4}0.9^{4}(1-0.9)^{5-4}      

               =5\times 0.6561 \times 0.1

               =0.3281

Therefore, the probability that exactly four sets will detect the plane is 0.3281

7 0
3 years ago
The diagram shows a pentagon. It has one line of symmetry.
Nina [5.8K]

Answer:

A) 10x + 8 = 21

B) x = 1.3

Step-by-step explanation:

2(2x + 3) + 2(x + 1) + 4x = 21

4x + 6 + 2x + 2 + 4x = 21

10x + 8 = 21

10x = 13

x = 1.3 cm

7 0
3 years ago
Mathew’s mom asked him to go to the store for her. To get to the store he walked seven blocks. He caught the bus and rode 13 blo
SVETLANKA909090 [29]

7+13+1.5=21.5

If he did it again the way back, it's 21.5 times 2.

He went a total of 43 blocks.

6 0
3 years ago
Read 2 more answers
Find the area and perimeter of the rectangle Length = 5cm Breadth =2cm
avanturin [10]

Answer:

perimeter: 14

Area: 10

Step-by-step explanation:

PERIMETER

2x(L+B) = 2x(5+2) = 2x(7) = 14

AREA

LxB = 5x2 = 10

PLEASE MARK ME BRAINLIEST

5 0
3 years ago
light a flashes every 5 seconds Light b flashes every 6 seconds light c flashes every 7 seconds work out how long it will take f
Svet_ta [14]

Answer:

210 seconds

Step-by-step explanation:

LCM of 5,6 and 7

8 0
2 years ago
Other questions:
  • If 75% of budget is 1200, what is the full budget using a table?
    10·1 answer
  • What dimensions a b and c of the net
    7·2 answers
  • Need help! Can anyone please help me? It would be much appreciated. Please view the attached photo. Will mark as brainliest!
    6·1 answer
  • Give me 10 cash amounts that total up to 16,100.00.
    6·1 answer
  • —-<br> PB. It has endpoints at -2 and 12. What is the coordinate of its midpoint
    10·1 answer
  • CORRECT answer gets brainliest.
    14·1 answer
  • What is the highest common factor of 42 and 90
    6·1 answer
  • Find the area of a cross section parallel to the base of a cylinder with a radius of 2.5 cm and a height of 12 cm
    11·1 answer
  • Perform the indicated operation. Show steps
    13·2 answers
  • Find two positive numbers whose difference is 9 and whose product is 2950.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!