The average score on the standard I.Q test is 100 with standard deviation 15. The     Mensa group accepts people into the organization if the I.Q is in the top 5% of all I.Qs . What is the I.Q cutoff for the organization

The empirical rule estabilishes the percentages that are 1,2, and 3 deviations from the mean True Flase

what measure of variability is to be computed with a median

The providence health maintenance organization wants to establish a criterion for recommending dietary changes if cholesterol levels are in the top 3%. What is the cutoff level for men aged 18 to 24 and the mean is 178.1 and the standard deviation is 40.7

9. Which measures aren’t resistant? (more than one could be correct) a. mean b. median c. IQR d. Standard deviation e. range f. coefficient of correlation

Consider the following data of 10 exams scores: 28, 57, 58, 64, 69, 74, 79, 80, 83, 85 1. The the mean, median, and mode       2. find the standard deviation without a graphing calculator. Show all your computations

Given the following grades on s test: 86, 92, 100, 93, 89, 95, 79, 98, 68, 62, 71, 75, 88, 86, 93, 81, 100, 86, 96, 52; What is the percentage of scores lying within one standard deviation from the mean? Two standard deviations from the mean? Are these results consistent with what

C8. Individuals with higher levels of education tend to delay parenting, having children at an older age in comparison with individuals with lower levels of education. We examine this relationship based on GSS 2018 data. In the following table, the mean, standard deviation, and variance for respondent's age when first child was born (AGEKDBRN) are reported for five categories (DEGREE). a. Identify the level of measurement for DEGREE and AGEKDBRN. b. Describe the relationship between respondent degree and age when first child was born. High School Some Less Than High School Bachelor's Graduate College Degree Degree Mean 21.33 23.08 24.83 27.44 28.59 5.055 5.498 4.581 5.314 5.446 Standard deviation Variance 25.556 30.232 20.984 28.234 29.654

What is the z score for 20 if mean =18 and stadnard deviation =0.5