Math 209 - Study guides, Class notes & Summaries

Statistics The science of planning studies and experiments, obtaining data, and then organizing, summarizing, presenting, analyzing, interpreting, and drawing conclusions based on the data Data Collections of observations Population The complete collection of all data Census Collection of data from every member of the population voluntary response sample respondents decide whether to be included Statistical/Critical Thinking Process Prepare/Analyze/Conclude ...

Characteristics of an isoceles triangle -at least 2 equal angles -at least 2 equal sides Characteristics of an equilateral triangle -all 3 sides are equal -all 3 angles are the equal -acute angles (60) -ISOCELES 6 Ways to Show Appreciation for Your Child's Teacher 0:00 / 0:54 Characteristics of a right triangle -only 1 right angle -sum of angles is 180 -2 acute angles that add to 90 -ISOCELES! Characteristics of a scalene triangle -All sides are different len...

Statistics Collection of methods for planning experiments, obtaining data, organizing, summarizing, presenting, analyzing, interpreting, and drawing conclusions based on data. Data Collections of observations, such as measurements, that are being considered. Population collect collection of all data or measurements that are being considered. Census collection of data from every member of the population Sample Subcollection of members selected from a population ...

frequency distribution Usually tabular display; shows how data partitioned among several categories (classes) by listing the categories + the number (frequency) of values in each of them Lower class Limits (LCL's) The smallest numbers that can belong to different classes (Ex: UCL'S are 50, 70, 90, 110, 130) Brainpower 0:02 / 0:15 Upper Class Limits (UCL's) The largest numbers that can belong to different classes (Ex: UCL'S 69, 89, 109, 129, and 149) Class Width T...

Parameter a numerical measurement describing some characteristic of a population Statistic measurement describing some characteristic of a sample 6 Ways to Show Appreciation for Your Child's Teacher 0:12 / 0:54 Mean Dividing the sum by the number of items to find the mean. Range max-min Quantitive Data numbers representing counts or measurements Qualitative Data names or labels Discrete # of possible values is finite or "countable" C...

V=Lengthwidthheight volume of rectangular prism V=1/2(a+b)h*H volume of trapezoidal prism Brainpower Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:54 Full screen v=1/2(ab)h volume of triangular prism V=πr^2h Volume of a cylinder v=1/3(area of base)h volume of pyramids V=1/3πr^2h volume of cone V=4/3πr^3 Volume of a sphere SA=2(wl+hl+hw) surface area of a rectangular prism SA=1/2(s1s2)+1/2(s1s2)+(s1s4)+(s3+s4)+...

Three Criteria for a Discrete Probability Distribution 1. X values are NUMERICAL 2. ΣP(x) = 1 3. 0≤P(x)≤1 MEAN for a discrete probability distribution μ = ΣP(x)*x STANDARD DEVIATION for a discrete probability distribution σ = √[Σ (x-μ)^2 * P(x)] FOUR Criteria for Binomial Distribution 1) Fixed number of trials (n) 2) Independent trials 3) Only two outcomes (success/failure) 4) Probability of success remains constant Binomial Formula P(x) = nCx P^x (1 -...

Statistics The science of planning studies, gathering data, organizing, analyzing data for the purpose of interfering proportions in a whole from a sample. Data Collections of observations, such as measurements, genders, or survey responses. Brainpower 0:07 / 0:15 Population The complete collection of all data or measurements that are being considered. Sample A sub collection of members selected from a population. Voluntary Response Sample A sample in which t...

MATH 209 EXAM QUESTIONS WITH 100% CORRECT ANSWERS 2024

Statistics a collection of methods for planning experiments obtaining data and then organizing, summarizing, presenting, analyzing, interpreting, and drawing conclusions Population the complete collection of all elements to be studied ex: All college students at Wingate Sample A subset of the population ex: Freshmen class at Wingate Parameter A measurement describing a characteristic of a population Statistic A measurement describing a characteristic of a sam...