Answer:
Mean for Labradors: 65
Step-by-step explanation:
This is how to find the M.A.D.
Step 1. Find the mean. To do that, you add all the numbers and divide that number by how many numbers you have which is 10. All the numbers together is 650. That divided by 10, is 65. That is your mean.
Step 2. Once you have that, subtract the mean from all 10 numbers.
Step 3. Find the mean of the 10 numbers which you have subtracted 65 (the mean) from. If the number you subtracted is a negative, make it a positive.
Which statements are true? Choose exactly TWO answers that are correct.
Image:
Dentist Mean patient age MAD
Appiah 43 9.7
Cantwell 29 13.9
Singh 41 14.1
A. Dr. Appiah’s patients’ ages vary more than do Dr. Cantwell’s patients’ ages.
B. Dr. Appiah’s patients’ ages vary less than do Dr. Singh’s patients’ ages.
C. Dr. Cantwell’s patients’ ages and Dr. Singh’s patients’ ages vary about the same amount.
D. Dr. Singh’s patients’ ages and Dr. Appiah’s patients’ ages vary about the same amount.
I think it's A and B.
10 points for the correct answer!
Answer:
Option B is right.
Step-by-step explanation:
Given that Three dentists wanted to compare the ages of their patients. They each calculated their patients’ mean age and the mean absolute deviation of their ages. They displayed the results in a table.
Dentist Mean MAD
Appiah 43 9.7
Cantwell 29 13.9
Singh 41 14.1
Mean absolute deviaiton is a measure of deviations of all entries from the mean.
We find that maximum variation is that of Singh followed by Cantwell and Appaiah.
Option A is wrong as Dr. Appiah’s patients’ ages do not vary more than do Dr. Cantwell’s patients’ ages.
B. is true.
Dr. Appiah’s patients’ ages vary less than do Dr. Singh’s patients’ ages.
C is false Dr. Cantwell’s patients’ ages and Dr. Singh’s patients’ ages vary about the same since tey are 13.9 and 14.1 hence different.
B) -0.63
C) -0.56
D) -0.48
Answer:
5.4 x 10 ^ -5
Step-by-step explanation: