Question

if a standard deviation of a variable x is 4 and if y=(3x + 5)/4 then the standard deviation of y is​

Answer 1

Answer:

4.25

Step-by-step explanation:

(12+5)/4.

..

.

.....xD

Answer 2

The correct answer is "y = 4.25". Further explanation is given below.

Step-by-step explanation:

Given :

Value of x = 4

When,

⇒  y = $\frac{3x+5}{4}$

On putting the value of x in the above equation, we get

⇒  y = $\frac{3*4+5}{4}$

⇒  y = $\frac{12+5}{4}$

⇒  y = $\frac{17}{4}$

⇒  y = 4.25

Learn more:

SD of y...

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