Wgu c955 exam stuvia - Study guides, Class notes & Summaries

Boxplot - Answer an image that has min, Q1, median, Q3, max Histogram - Answer A graphical representation -- bars, measuring the frequency within each interval Skewed right - Answer Not a symmetric distribution, the tail is on the right, i.e. extra stuff on the right Measures of center - Answer Median, the mean (and mode) Measures of spread - Answer Range, IQR & standard deviation Standard Deviation Rule - Answer 68% of the data are within 1 standard deviation, 95% are within 2, 9...

Discrete data - Answer Has distinct values, can be counted, had unconnected points (think dots) Continuous data - Answer Has values within a range, measured not counted, does not have gaps between data points (data is connected lines or curves). Example of discrete data - Answer Days of the week Expressions - Answer A group of symbols such as numbers and operators that has mathematical validity Commutative - Answer The order in which the numbers appear in the sum can be reversed I...

empirical probability - Answer An estimation of probability derived from recording data about what has happened during a series of experiments. complement - Answer An event that is the opposite of another event. The complement of heads when flipping coins is tails. The probabilities of an event and its complement always sum to 1. independent events - Answer Events, where the occurrence of one does not affect the probability that the other event(s) will occur. event - Answer An outcome, ...

Histogram - Answer A graphical representation -- bars, measuring the frequency within each interval Skewed right - Answer Not a symmetric distribution, the tail is on the right Measures of center - Answer Median, the mean (and mode) Measures of spread - Answer Range, IQR & standard deviation Standard Deviation Rule - Answer 68% of the data are within 1 standard deviation, 95% are within 2, 99.7% are within 3 standard deviations from the mean. median (for center) & IQR (for spr...

Order of Operations - Answer A set of rules that defines the order in which mathematical operations should be performed. unlike terms - Answer Terms that do not have the same variable(s) with the same exponent(s). These terms can not be combined using addition or subtraction. ordered pairs - Answer Two numbers written in the form (x, y), where x represent the x-value or x-coordinate, and y represents the y-value or y-coordinate. equation - Answer Two mathematical expressions separated b...

terminal decimal - Answer A decimal number that has a finite number of digits. improper fraction - Answer A fraction where the the number in the numerator is more than the number in the denominator. denominator - Answer The number written after the slash, or below the fraction bar, in a fraction. fractions - Answer The representation of a number as a division of one integer by another through the use of a slash or division bar. percentages - Answer Like fractions, they denote somethi...

Conditional Probability (and Probability) - Answer P(B|A) = P(A and B)/P(A) or P(A|B) = P(A and B)/P(B) Determining Independence - Answer P(B|A) = P(B) or P(A and B) = P(A) x P(B) can be used. Multiplication Rule for Independent Events - Answer If two events are independent, then P(A and B) = P(A) x P(B). Disjoint - Answer Two events which cannot both occur at the same time. Theoretical Probability Formula - Answer Probability of Event = # of outcomes in the event / To...

Standard Deviation Rule - ANSWER-68% of the data are within 1 standard deviation, 95% are within 2, 99.7% are within 3 standard deviations from the mean. median (for center) & IQR (for spread) - ANSWER-skewed data uses these for center and spread Scatter plot - ANSWER-A graphical representation of Q -> Q Two way table - ANSWER-A graphical representation of C -> C Side-by side box - ANSWER-A graphical representation of C -> Q Interpolation - ANSWER-Making predictions *...

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Histogram - when to use - ANSWER-Based on the shape of the distribution, uses mean + standard deviation OR median + IQR to describe center and spread - Larger data sets; shows shapes of distribution and potential outliers; ignores the individual data valuesl Histogram Skewed right - ANSWER-Not a symmetric distribution, the tail is on the right Standard Deviation Rule - ANSWER-68% of the data are within 1 standard deviation, 95% are within 2, 99.7% are within 3 standard deviation...