Brainarium

• MAT101_SL_V7 • Topic 6: Graded Midterm Exam Started on Tuesday, January 21, 2025, 3:48 PM State Finished Completed on Tuesday, January 21, 2025, 4:20 PM Time taken 32 mins 20 secs Grade 190.00 out of 200.00 (95%) Question 1 Correct 5.00 points out of 5.00 Flag question Question text Simplify the expression −15+3(x+9)−15+3(x+9). Select one: A. 3x+123x+12 B. 27x−1527x−15 C. x+12x+12 D. 3x−63x−6 Question 2Correct 5.00 points out of 5.00 Flag question Quest...

• MAT101 • MAT101_SL_V7 • Topic 5: Polynomials and Other Equations Started on Tuesday, January 21, 2025, 1:54 PM State Finished Completed on Tuesday, January 21, 2025, 2:39 PM Time taken 44 mins 39 secs Grade 125.00 out of 125.00 (100%) Question 1 Correct 5.00 points out of 5.00 Flag question Question text Express −16−−−−√−16 in standard form of a complex number. A. 0−4i0−4i B. −4+0i−4+0i C. 4+0i4+0i D. 0+4i0+4i Question 2 Correct5.00 points out...

• MAT101 • MAT101_SL_V7 • Topic 3: Systems of Linear Equations in Two Variables Started on Tuesday, January 21, 2025, 12:48 PM State Finished Completed on Tuesday, January 21, 2025, 1:47 PM Time taken 58 mins 56 secs Grade 125.00 out of 125.00 (100%) Question 1 Correct 5.00 points out of 5.00 Flag question Question text Simplify the expression 64÷(12+4×2)64÷(12+4×2) using the order of . Select one: A. 165165 B. 403403 C. 22 D.88 Question 2 Correct 5.00 points ou...

Within group Variance - ️️Dispertion of scores within each group, cause by error F - ️️Between group Variance / Within Group Variance - Measure of differences between groups relative to error - Just like t, F is influenced by the differences between means as well as the spread of scores in each group F = - ️️MS between / MS within MS (mean squares) between = - ️️SS between / df between df between = - ️️# of groups (k) - 1 MS (mean squares) within = - ️️SS within /...

S^2Within = - ️️the population variance estimate based on the variation within each of the groups If the null hypothesis is true, ________ gives an accurate indication of the variation within the populations (that is, the variation due to chance factors) - ️️the betweengroups estimate of the population variance When conducting an ANOVA, the within-groups population variance estimate is the sum of the population variance estimates based on each sample, divided by the: - ️️number...

Eta squared tells you ___________ - ️️the amount of variation that can be attributed to the manipulation (Proportion of variance in Y explained by X) Why use adjustments in pairwise comparisons? - ️️to avoid an increase in the probability of a Type I Error Post-hoc tests for one-way ANOVAs - ️️tukey's HSD Bonferroni What is the difference between factorial anova and one-way ANOVAs? - ️️2 independent variables (both between groups) what is a main effect? - ️️The ef...

What are "Groups" or "Levels"? - ️️Groups or levels are different groups in the same independent variable. In the above example, your levels for "brand of cereal" might be Lucky Charms, Raisin Bran, Cornflakes — a total of three levels. Your levels for "Calories" might be: sweetened, unsweetened — a total of two levels. Let's say you are studying if Alcoholics Anonymous and individual counseling combined is the most effective treatment for lowering alcohol...

Tukey Honestly Significant Difference Method - ️️- rather than using the type I error probability rate of 0.05 for individual comparisons, it is reduced - this way, the probability of a type I error in the set of multiple pairwise comparisons is less than .05 - this is called the "familywise error rate" Arcsine Transformation - ️️- ANOVA assumes normal distribution & equal variance across groups - this is not true of proportional data (eg. test scores), which tend to have le...

When to use Post hoc comparisons - ️️You would use post-hoc comparisons when the overall F statistic was significant, but you did not make specific predictions beforehand about the nature of this difference. When to use power analysis - ️️Power analysis is used when we want to know how sensitive our study is in terms of being able to detect effects. Power is therefore the probability of that a sample will yield statistically significant results when a mean difference truly exists i...

Macromolecules - ️️large biological molecules: - carbohydrates - lipids - proteins - nucleic acids Carbon - ️️has 4 unpaired elections in the outer shell, allowing it to bond with 4 other molecules; form polar and non-polar bonds Functional Groups - ️️side groups bonded to carbon chains; have special characteristics Polymer - ️️a chain of repeating, not necessarily identical units Carbohydrates - ️️made of C, H, and O [Cn(H2O)n]; monosaccharides, disaccharides, and...

When does behavior affect our attitudes? - ️️1. Role playing 2. Saying becoming believing 3. Evil and moral acts 4. Social movements Role Playing - ️️Actions expected of those who occupy a particular social position Philip Zimbardo's Stanford Prison Experiment - ️️A 2-week experiment that simulated the prison life of both prisoners and guards - Ended in just 6 days because of what the simulation was doing to college students who participated - Guards quickly became aggres...

The Myth of Demeter and Persephone - ️️A myth that explains why winter happens Summary: Persephone is kidnapped by Hades and because she eats 4 pomegranate seeds she has to stay their 4 months each year (Demeter is very sad during this time so the crops don't grow). Hermes goes to get her back from the underworld. The Myth of Demeter and Persephone Characters - ️️- Demeter: goddess of harvest -Persephone: daughter, kidnapped by Hades - Hades: god of underworld - Themes of Dem...

How to calculate overall gross margin - Correct answer-total gross profit/ revenue x 100 What is predicted growth after year 1 for auto & mobile? - Correct answer-35% for both What is predicted growth after year 2 for auto & mobile? - Correct answer-25 for mobile, 35 for auto What are mobile customers important features? - Correct answer-resolution and power What are auto customers important features? - Correct answer-sensitivity and temperature range What are mobile/auto customers more s...

M (mega) - Correct answer-10^6 k (kilo) - Correct answer-10^3 c (centi) - Correct answer-10^-2 m (milli) - Correct answer-10^-3 u (micro) - Correct answer-10^-6 n (nano) - Correct answer-10^-9 p (pico) - Correct answer-10^-12 Which compound is correctly named? A. FeCO3, iron carbonate B. K2SO3, potassium sulfite C. Sr(NO3)2, strontium nitrite D. Co2(SO4)3, cobalt(II) sulfate - Correct answer-B

The Five Pillars- - ️️- the declaration of faith (shahada), prayer (salah), alms-giving (zakat), fasting (sawm) and pilgrimage (hajj), constitute the basic norms of Islamic practice. They are accepted by Muslims globally irrespective of ethnic, regional or sectarian differences Shia- - ️️a term that stems from shi'atu Ali, Arabic for "partisans of Ali," believe that Ali and his descendants are part of a divine order. Sunnis, meaning followers of the sunnah, or "way" ...

Finance research suggests that diversification may destroy value because - ️️Inefficient internal capital markets Reduced managerial accountability / greater entrenchment Loss of focus Incentive problems Horizontal Integration - ️️driven by economies of scale & scope Vertical integration - ️️motive is greater control over production & distribution -Backward integration -Forward integration conglomeration - ️️driven by desire to diversify Mergers and Acquisitions tend to...

Uniform-cost search: Completeness - ️️Yes Uniform-cost search: Optimal - ️️Yes Uniform-cost search: Time complexity - ️️O(b^d) Uniform-cost search: Space complexity - ️️O(b^d) Depth-first search: Completeness - ️️No Depth-first search: Optimal - ️️No Depth-first search: Time complexity - ️️O(b^m)

Nigerian Killings - ️️-347 people are killed during demonstration (Shiat Muslims gathering) that not many people know about -Iranian President was mad U.S. send extra troops to boost fight against IS in Iraq - ️️-200 deployed -4,100 total troops - Send weapons to the kurdish forces - Continue having a say in what is happening Bus bombing injures 21 - ️️In Jerusalem Saudi threat to sell U.S. assets could hurt us, but mostly the Saudi's would be hurt - ️️700 Billion on ...

organizational foundation - ️️philosophical reason for being mission - ️️statement of organization's function in society that identifies customers,markets,products and technologies organizational culture - ️️set of values, ideas, attitudes, and norms of behavior business - ️️describes clear, broad, underlying industry goal/objective - ️️statement of accomplishment of a task to be achieved market share - ️️ratio of sales rev of the firm to the total sales rev of a...