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
Maurinko [17]
2 years ago
7

Shawn would like to know the average height of the trees in the back field at school. She measures the heights of each tree in a

random sample of 20 trees. The mean height of Shawn's sample is 61 inches, and the MAD (mean absolute deviation) is 2 inches.
Mathematics
1 answer:
sammy [17]2 years ago
5 0

Select all that apply

Question options :

The median height of the sample must be between 59 and 63 inches.

Another random sample of 20 trees is likely to have a mean between 57 and 65 inches.

The mean height of these 20 trees is likely to be the same as the mean height of all trees in the back field .

The mean height of these 20 trees is likely to be the same as the mean height of a second random sample of 20 trees.

Shawn would be more likely to get an accurate estimate of the mean height of the population by sampling 40 trees instead of sampling 20 trees.

Answer:

The median height of the sample must be between 59 and 63 inches.

The mean height of these 20 trees is likely to be the same as the mean height of all trees in the back field .

The mean height of these 20 trees is likely to be the same as the mean height of a second random sample of 20 trees.

Shawn would be more likely to get an accurate estimate of the mean height of the population by sampling 40 trees instead of sampling 20 trees

Explanation:

The mean absolute deviation is the summary of absolute deviations from the central point or average of a data set. The central point measurement can be the mean, median or mode of the data set. An average absolute deviation can be used instead of a standard deviation to measure dispersion from central point.

In the above case, a sample is taken of 20 trees and there is a mean absolute deviation of 2, hence, median can be between 59 and 63. Also sample represents population, therefore mean of another sample taken is likely to be same as the previous one taken. Mean invariably gets more accurate as sample size increases too.

You might be interested in
Larry fills his bathtub at a constant rate. The amount of water in his tub is proportional to the amount of time he spends filli
Kryger [21]

Answer:

7 but im not sure

Step-by-step explanation:

8 0
3 years ago
4. Seleccione la respuesta correcta. Select the right answi
WITCHER [35]

Answer:

B

Step-by-step explanation:

The answer is B I have seen this question befor

5 0
3 years ago
Which of the following statements is true?
julia-pushkina [17]
A) A triangle can have two congruent angles.
It's called an Isosceles Triangle
5 0
3 years ago
Use the distributive property to generate an equivalent expression for<br> 2(10x-3)
mr Goodwill [35]

Answer:

20x - 6

Step-by-step explanation:

You just multiply 2 by 10x and by -3

5 0
2 years ago
Read 2 more answers
How much honey does a beekeeper take from the hive
juin [17]
A milllion probably like 1 million
7 0
3 years ago
Read 2 more answers
Other questions:
  • Lina took out a 4-year loan for $14,000 to buy a new car. She has to pay 4% simple interest on the loan. How much will Lina have
    12·1 answer
  • Solve for the value of X in 9^x+4(3^x+1)+27=0​
    5·1 answer
  • Determine whether or not this is a function<br> ANSWER ASAP
    11·1 answer
  • Cindy plans to invest for 10 years at 1.5%, compounded annually. If she hopes to have $10,000 after 10 years, how much
    5·1 answer
  • Helppp please will give brainliest ​
    15·2 answers
  • Need help (8th grade math)
    5·2 answers
  • What is the simplified form of StartRoot StartFraction 2,160 x Superscript 8 Baseline Over 60 x squared EndFraction EndRoot? Ass
    14·2 answers
  • Layla missed 38 questions on her multiple choice math final that had a total of 200
    14·1 answer
  • Solve the equation for a.<br><br> 3a+13.61=−9.43
    7·1 answer
  • 85 points if u can answer this is the next 20 minutes!!!! Function 1 is defined by the following table
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!