Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score Frequency 90 80 4 70 9 60 50 40 30 1 4

IQ scores are normally distributed with a mean of 100 and standard deviation 16. Calculate the z-score for an IQ of 76. Include one decimal place in your answer. Add your answer

Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score              Frequency 90   1         80   4         70   8         60   5         50   3         40   2         30   1         0   4         Is there an easy way to get it?

Find the standard deviation (rounded to the nearest unit) for the data indicated.   Test Score              Frequency 90   1         80   4         70   7         60   6         50   3

The grades for 30 students on the most recent exam are given in the data table below: Round your answer to 2 decimal places as needed 70 70 80 80 70 60 90 80 80 80 60 70 70 70 70 90 70 70 80 90 60 90 70 60 90 70 06 90 90 80 What is the mean score for the exam? What is the median score for the exam? What is the standard deviation for the exam?

Find the range and standard deviation of the following set of data.   168​, 177​, 163​, 174​, 167​, 186​, 162

Find the standard deviation for the following data.Round your answer to 2 decimal places as needed 31,72,84,25,100,18,90,51,47,87

What is the standard deviation?

In an Algebra class, the scores on a test are normally distributed. The middle 68% of the scores fall between 69 and 81. What are the mean and standard deviation for this data? Standard Normal Curve Mean: Standard Deviation:

The average driver spends $39 at the gas station each week with a standard deviation of $11. Assuming that the amount a driver spends on gas follows a normal distribution; find the percentage of drivers who spend: 1. More than $67? 2. Less than $25? 3. Between $25 and $67