Pixal
Pixal Pixal
  • 01-07-2020
  • Mathematics
contestada

The mean of the numbers 3, 6, 4, x and 7 is 5. Find the standard deviation.

Respuesta :

CrazyMoosen
CrazyMoosen CrazyMoosen
  • 01-07-2020

Answer:

1.2

Step-by-step explanation:

Since (3 + 6 + 4 + x + 7)/5 = 5, then 3 + 6 + 4 + x + 7 equals 25. Adding, we have 20 + x = 25. Thus x = 5. Now we calculate how far each number is from the mean. 3 is 2 away. 6 is 1 away. 4 is also 1 away. 5 is 0 away, and 7 is 2 away. Now, we have to find the mean of this. (2 + 1 + 1 + 0 + 2 ) / 5 is equal to 6/5, which is 1.2

Answer Link

Otras preguntas

Which of the allies suffered the greatest losses on D-Day
A circular pool is ten feet in diameter and five feet deep. What is its volume, in cubic feet?
Which period was the “golden age of dinosaurs”? a. the Triassic Period b. the Jurassic Period c. the Cretaceous Period d. the Tyrannosaurus Period
which explorer sailed for france?
Which period was the “golden age of dinosaurs”? a. the Triassic Period b. the Jurassic Period c. the Cretaceous Period d. the Tyrannosaurus Period
The significance of the Open Door Policy for the United States lay in its (A) providing a use for the Philippines as a way station between China and the United
least number that has 2, 3, 4, as factors
Which of the allies suffered the greatest losses on D-Day
If ab = 10 and a2 + b2 = 30, what is the value of (a + b)^2?
Please I have the answers I just want to double check them and Solvekey: B=42  A=93  N=29  X=361. (b-7)(2b-7)2. (4a-4)(5a-7)3. (5n-6)(4n+7)4. (2n=8)(8n+3)5. (6x