If 25 servings of guacamole have been sold from a batch, in ounces, what is the standard deviation of how much is left? (Suppose the servings of guacamole are independent.)

The standard deviation of the the left guacamole is 12.51.

Step-by-step explanation:

As the complete question is not given, thus the complete question is found online and is attached herewith.

From the data

Population mean==2.2 ounces

Population Standard Deviation==0.4 ounces

Batch mean==80 ounces

Batch Standard Deviation==7 ounces

As per serving is 2.2 ounces

So for 25 servings, Guacamole used is

25*2.2=55 ounces

Thus the Guacamole left is given as

Batch-55=80-55-25 ounces

As it is given that the servings are independent, thus

Var(Z)=Var(X)+Var(Y)

Here Var(Z) is the variance of the Batch, X is the served guacamole and Y is the left guacamole

Also as variance is given as so putting the values

So the standard deviation of the the left guacamole is 12.51.

answer: 88

step-by-step explanation:

the answer is y = 11.54

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