Question

Calculate the standard deviation of the data.

7 11 8 12 4 6 2 15 7 8

Step 1

Standard deviation:

The standard deviation indicates by how much each observation differs from a central point represented by the mean. In general, the standard deviation increases with the increase in the distances between the individual observations and the mean of the data set.

The general formula for variance is,

Standard deviation s=Sqrt (sum of (xi-xbar)^2/n-1)

Step 2

*Mean:*

The mean of the sample data is:

Step 3

The standard deviation for ...

Tagged in

Q: The time married men with children spend on child care averages hours per week. You belong to a pro...

A: (a) Null and Alternative Hypotheses:The following null and alternative hypotheses need to be tested:...

Q: Select the statistic test that best fits each description. Study examining how much of the variation...

A: Regression:Regression analysis explains whether two variables are related or not and correlation exp...

Q: You are planting a garden this Spring and you have 3 different kinds of seeds tochoose from: carrot ...

A: Consider the events of eating lettuce (L) by hungry moles and hungry gophers be M and G respectively...

Q: Supposed P(F) = .25, P(F or G) = .70, and events F and G are mutually exclusive. Find: a) P(G) Su...

A: (a)If events F and G are mutually exclusive, then, P (F or G) = P(F)+ P(G).Or, P(G) = P (F or G) – P...

Q: Lifestyle: Hide the Mess! A survey of 1000 adults (reported in USA Today) uncovered some interesting...

A: The given responses with their percentages are tabulated as below:

Q: State whether the data discribed below are discrete or continuous, and explain why. The number of te...

A: Discrete data can only take specific numeric values (whole numbers) and are countable. Continuous da...

Q: Let Z1,...,Zn be a sequence of random variables. For every n = 1, 2;..., P(Zn =n^2) = 1/n, and P(Zn ...

A: Introduction:For a particular value of n, P (Zn = n2) = 1/n and P (Zn = 0) = 1 – 1/n.

Q: Car Weight (lbs) Miles per Gallon 3,765 Car 1 19 Car 2 3,964 17 Car 3 3,470 21 Car 4 3,175 22 Car 5 ...

A: Enter the data as shown in excel

Q: Assume the random variable x is normally distributed with mean μ=8585 and standard deviation σ=44. F...

A: From the question, it is given that x is random variable that follows normal distribution with mean ...

Sorry about that. What wasn’t helpful?