Stat 101 - Study guides, Class notes & Summaries

STAT 101 Chapter 5 HW with Questions and Answers The z-score for a particular observation is z = 0.4. This means the observation is ANSWER 0.4 standard deviations above the mean. The z-score for a particular observation is z = -1.2. This means the observation is ANSWER 1.2 standard deviations below the mean. In a sample of 25 male newborns, the mean birth weight was 3.4 kg and the standard deviation was 0.35 kg. The z-score for a birth weight of 4.0 kg is __________. Round your answ...

Stat 101 Chapters 4-6 Exam with Questions and Answers Summary Statistic ANSWER Numerical summary of a variable, such as its median or average. Median ANSWER Value in the middle of a sorted list of numbers; the 50th percentile Quartile ANSWER The 25th or 75th percentile. Interquartile Range (IQR) ANSWER Distance between the 25th and 75th percentiles. Range ANSWER Distance between the smallest and largest values. Five-Number Summary ANSWER The minimum, lower quartile, median, upp...

Stat 101 Chapter 3 with Questions and Answers Display the distribution of a quantitative variable with; ANSWER Histogram, stem-leaf plot, and dot plot Distribution is described in terms of; ANSWER Shape, center and spread. Symmetric ANSWER Distribution has roughly the same shape reflected around the center. (Shape description stops at a gap.) Skewed ANSWER Distribution extends farther on side than the other. Skewed Right = More Smaller Values Skewed Left = More Larger Values (L=L) ...

STAT 101 Exam 3 with Questions and Answers The process of adding or subtracting a constant from every value of a quantitative variable ANSWER Shifting The process of multiplying or dividing all the values of a quantitative variable by a constant ANSWER rescaling The process of determining the number of standard deviations every variable of a quantitative variable is away from its mean value ANSWER standardizing What distribution is symmetric, unimodal and bell-shaped ANSWER Normal ...

STAT 101 Chapter 6 Exam with Questions and Solutions Choose the correct words to describe the scatterplot below: The form of the relationship is linear . The strength of the relationship is strong . The direction of the relationship is negative . There are no outliers. ANSWER linear strong positive Choose the correct words to describe the scatterplot below: The form of the relationship is linear . The strength of the relationship is moderate . The direction of the relations...

Q: army health promotion focuses on the integration of into the community and organizational structure A: primary prevention and public health practice Q: unintended pregnancies can be a risk factor for: A: o Spouse abuse o Child abuse and neglect Q: which of the following are examples of environmental health programs A: o Workplace health and safety o Pesticide usage o Air and water quality Q: commanders should emphasize good order and discipline in the barracks or garrison by period...

STAT 101 Chapter 16 HW with Questions and Answers An ABC News Poll in 2004 surveyed 1,501 randomly selected U.S. adults and asked if they believed it is more enjoyable to be married or single. In the survey, 75% of the people responded that they believed it is more enjoyable to be married than single. Match the condition/assumption on the left with the description in the context of the problem on the right. ANSWER Randomization Condition = The 1501 people are a random sample from the popul...

STAT 101- Exam One (Ch. 1-8) Iowa State.

This is a comprehensive and detailed study guide on Exam 2 for Stat 101. *Essential!!

This is a comprehensive and detailed assignment on module 1C. *Essential!!