3. Describing Data Numerically

Given the population data set $3,1,2,9,5$, what is the standard deviation of this population (rounded to two decimal places)?

What is the most likely effect on the $standarddeviation$ of a data set if the $outlier$ were removed from the data set?

$\mathrm{As} \mathrm{the} \mathrm{mean} \mu \mathrm{increases} \mathrm{in} a \mathrm{normal} \mathrm{distribution}, \mathrm{what} \mathrm{happens} \mathrm{to} \mathrm{the} \mathrm{graph} \mathrm{of} \mathrm{the} \mathrm{normal} \mathrm{curve}?$

Which of the following is not a property of the $standard deviation$?

A population has a mean of $\mu$ = $9$ and a sum of scores $\Sigma x$ = $54$. How many scores are in the population?

In the context of displaying error bars on a graph, which quantity is most commonly used to represent the variability of the data?

Given the data set consisting of a single value $10$, what is the standard deviation of this set?

An observation is considered an outlier if it is below which of the following values in a normal distribution?

If a set of data has a standard deviation of $0$, which of the following must be true about the data?

According to the empirical rule for a normal distribution, $99.7\%$ of $7$-year-old children are between which of the following heights if the mean height is $48$ inches and the standard deviation is $2$ inches?

If the unit of a dataset is $\mathrm{meters}$, the unit for population variance would be

The standard deviation of the distribution of sample means is $\frac{\sigma }{\sqrt{n}}$.

If the standard deviation for a set of data is $0$, what does this indicate about the data values?

Given the data set $5,7,9,10,14$, what is the value of the standard error of the mean for this sample?

Which of the following is a good point estimator for the population standard deviation?