calculate the standard  deviation for the following data set   2  4   3    7    2   roundup to 2  deciamal digits

Find the standard deviation using 2 methods. And identify it is a grouped data or ungrouped data

These values represent the BMI of 9 individuals. From these data, calculate:   1. Range2. Deviance3. Variance 4. Standard deviation Round all values to two decimal points.    X 18 21 23 24 26 18 16 14 20

The purpose of this assignment is to check that you are able to properly use the statistical keys on your calculator to find the mean and standard deviation. The data below represents the number of siblings that each student has in a random sample of 10. Enter the data into your calculator, then find the mean and standard deviation. Express each to the tenths place. (to one decimal place) 2        6        3        1        1        6        2        1        3        4 A. sample mean x̄ ____________ B. sample standard deviation s ____________

Find the range, sample standard deviation and inter-quartile range (1QR) of the following data set. 31 31 39 61 66 78 82 89 90 93 range = (Please enter an exact answer.) standard deviation (s) = (Round to one decimal place.) IQR = (Please enter an exact answer.) A new number, 264, is added to the data set above. Find the range, sample standard deviation and IQR of the new data set. range = (Please enter an exact answer.) standard deviation = |(Round to one decimal place.) IQR = (Please enter an exact answer.) Which measure of spread is less affected by the addition of the extreme observation? Range standard deviation O IQR

Identify the symbols used for each of the following: (a) sample standard deviation; (b) population standard deviation; (c) sample variance; (d) population variance. a. The symbol for sample standard deviation is b. The symbol for population standard deviation is c. The symbol for sample variance is d. The symbol for population variance is

Identify the symbols used for each of the following: (a) sample standard deviation; (b) population standard deviation; (c) sample variance; (d) population variance. If sample data consist of weights measured in grams, what units are used for these statistics and parameter a. The symbol for sample standard deviation is b. The symbol for population standard deviation is c. The symbol for sample variance is d. The symbol for population variance is If sample data consist of weights measured in grams, then correctly complete the following sentences. a. The unit for sample standard deviation would be b. The unit for population standard deviation would be C. The unit for sample variance would be ▼ d. The unit for population variance would be ▼ C

Calculate the standard deviation of the data shown, to two decimal places 6.3 28.2 24.9 23.7 5.7 2.7 13.4

The following data represent the flight time (in minutes) of a random sample of seven flights from one city to another city. 281, 269, 259, 265, 256, 259, 266 Compute the range and sample standard deviation of flight time. minutes The range of flight time is The sample standard deviation of flight time is minutes. (Type an integer or decimal rounded to one decimal place as needed.)

Use sample standard deviation formula to find the standard deviation of these BMI’s: ​ 33.3, 28, 45.4, 28.4 and 25.9.