# Question: The number of incidents in which police were needed for

The number of incidents in which police were needed for a sample of 10 schools in Allegheny County is 7, 37, 3, 8, 48, 11, 6, 0, 10, 3. Are the data consistent or do they vary? Explain your answer.

Find the range, variance, and standard deviation unless the question asks for something different.

Assume the data represent samples, and use the shortcut formula for the unbiased estimator to compute the variance and standard deviation.

Find the range, variance, and standard deviation unless the question asks for something different.

Assume the data represent samples, and use the shortcut formula for the unbiased estimator to compute the variance and standard deviation.

## Answer to relevant Questions

The increases (in cents) in cigarette taxes for 17 states in a 6-month period are 60, 20, 40, 40, 45, 12, 34, 51, 30, 70, 42, 31, 69, 32, 8, 18, 50 Use the range rule of thumb to estimate the standard deviation. Compare the ...Which has a better relative position: a score of 75 on a statistics test with a mean of 60 and a standard deviation of 10 or a score of 36 on an accounting test with a mean of 30 and a variance of 16? The airborne speeds in miles per hour of 21 planes are shown. Find the approximate values that correspond to the given percentiles by constructing a percentile graph. Class Frequency 366–386.....4 387–407 ...What test score in Exercise 28 corresponds to the 33rd percentile? Construct a boxplot for the number (in millions) of visitors who traveled to a foreign country each year for a random selection of years. Comment on the skewness of the distribution. 4.3 0.5 0.6 0.8 0.5 0.4 3.8 1.3 ...Post your question