12. It is the square of the population standard deviation. Answer:
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- fill in for standard deviationCumulative Review 9. The list shows the number of text messages 5 students sent on Tuesday. 15, 45, 70, 30, 120 What is the mean absolute deviation of the 5 text messages? A. 31.2 C. 54 B. 57 D. 1.2What is the mean?What is the standard deviation?What percentage of values should fall between 37 and 41?Which value has a z-score of -2?
- open file attached for questionWhat is the other name of Arithmetic Average? O a. Spread variability Ob. Mean O c. Median O d. Weighted mean(N ***. For the data shown, answer the questions. Round to 4 decimal places where possible. 28.5 28.8 18.7 12.9 1.5 26.7 Find the mean: Find the median: Find the standard deviation: Focus 33 words English (United States) - 三
- 2.2 About what percent of x values lie between the first and second standard deviations from the mean (both sides)? About _________% Answer as a whole number.Ten friends kept track of how many times they sent a text over a one hour period. The results are in the table below. number of texts 5 6 7 7 8 10 10 15 16 17 They determine that the mean of the data set is 10.110.1, but they also want to know the range and standard deviation. Calculate the range of the data set.Is this correct answer 12? Calculate the POPULATION (since it's just two friends, they're the population) standard deviation of the data set.I have a hard timeK A data set lists weights (lb) of plastic discarded by households. The highest weight is 5.26 lb, the mean of all of the weights is x=2.312 lb, and the standard deviation of the weights is s = 1.118 lb. a. What is the difference between the weight of 5.26 lb and the mean of the weights? b. How many standard deviations is that [the difference found in part (a)]? c. Convert the weight of 5.26 lb to a z score. d. If we consider weights that convert to z scores between 2 and 2 to be neither significantly low nor significantly high, is the weight of 5.26 lb significant? a. The difference islb. (Type an integer or a decimal. Do not round.) View an example Get more help. ... Clear all Check answer Incor