Data sample set Study guides, Class notes & Summaries

Statistics - ANSWER-A branch of science chiefly concerned with the collection, analysis, interpretation, and presentation of empirical data. A set of mathematical tools that help us tell stories with data and help us use data to decide which stories to trust. It is used to quantify and manage uncertainty. Variation - ANSWER-An inherent component of all living systems. Uncertainty - ANSWER-Variation and incomplete information. Sampling Error - ANSWER-The variation that we see among multi...

WGU D204 Exam Questions & Answers Latest Updated 2024/2025 | Scored A+. What questions will data analytics consider improving 10% market share value to open new store in a different location? a. Get list of geographic areas b. Reduce staff pay by 10% c. Check compatible market value d. None of the above - ANSWER-C Check compatible market value A data set has K variables, and the classifying method has the following steps: compare levels on nearby data, assign a new case to a category of n...

AQA AS PHYSICS 7407/1 Paper 1 Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E8 7407/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 TOTAL Materials For this paper you must have: • a pencil and a ruler • a scientific calculator • a Data and Formulae Booklet • a protractor. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. • You must answer the questions in...

Population - The entire group that is the target of interest, not just people. Eg, "the population of 1 bedroom apartments" Sample - A subgroup of the population. Eg, "the 1 bedroom apartments with dishwashers." Steps in the statistics process - 1. PRODUCE DATA (by studying a sample of the population) 2. EXPLORATORY DATA ANALYSIS (Summarize data.) 3. PROBABILITY ANALYSIS (Determine how the sample may differ from the population.) 4. INFERENCE (draw conclusions) Data - pieces of info ab...

What is the Mean, Mode & Median for the data in Column 1, Data Set A? a. Mean = 8.7, Mode = 8, Median = 7 b. Mean = 8.7, Mode = 7, Median = 8 c. Mean = 8, Mode = 8.7, Median = 7 d. Mean = 7, Mode = 7, Median = 8.7 e. Mean = 8, Mode = 8, Median = 7 - Answer B Formula: Mean = Sum(x)/n = 8.7 Mode = Most frequent value = 7 Median = because sample is even (n=50), the median is the average of the (n/2)th and ((n/2)+1)th values in the sorted series = 8 Please reference Quantifying Process Va...

WGU C784 Statistics Test (2024) || All Questions & Solutions (Expert Rated A+) WGU C784 Statistics Test (2024) || All Questions & Solutions (Expert Rated A+) In a standard 52-card deck, where each card is assigned a numeric value, the mean of the 52 cards is 7.0 with a standard deviation of 3.742. To test if a representative sample can be attained, the deck is shuffled and 13 cards are randomly drawn, one at a time. Each card is recorded and then returned randomly to the deck before the next...

WGU C207 OA Questions and Answers 100% Pass Simple indexing Common analytic measure to improve performance. Compares current data with data during a base period. (Price / Price during "Base Period") x 100 i.e. Big Mac was 1.60 in 1968 which is base period. what is index for 2014 if price was 4.80 then? (4.80 / 1.60) * 100 = 300 (means price is 3x greater than base period) Used to identify price fluctuations of supplies, materials, products, etc. Weighted Index assign a weight to allow for...

The main purpose of descriptive statistics is to correct answer: Summarize data in a useful and informative manner Which word is NOT part of the definition of descriptive statistics? correct answer: Predicting A marketing class of 50 students evaluated the instructor using the following scale: superior, good, average, poor, and inferior. The descriptive summary showed the following survey results: 2% superior, 8% good, 45% average, 45% poor, and 0% inferior. correct answer: c. Most stud...

Given the following set of numbers: 3.3, -2.3, -16, 25. What are the square roots of the whole number? A. +/- 2.3 B. +/- 3.3 C. +/- 4 D. +/- 5 - D. +/- 5 Composite Number - A number with more factors that just one and itself. Equivalent Fractions - Different fractions that represent the same value. X-Axis - The horizontal line that passes through the origin on a coordinate plane. Qualitative Data - Non-numeric information based on some quality or characteristic. No Correlation...

AQA A-level CHEMISTRY 7405/3 Paper 3 Version: 1.0 Final *JUN* IB/M/Jun23/E9 7405/3 For Examiner’s Use Question Mark 1 2 3 4 5 6 Section B TOTAL Friday 23 June 2023 Morning Time allowed: 2 hours Materials For this paper you must have: • the Periodic Table/Data Booklet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-poin...