[Math Center] 1. Each employee of a certain company is in either Department [latex]X[latex] or Department [latex]Y[latex], and there are more than twice as many employees in Department [latex]X[latex] as in Department [latex]Y[latex]. The average (arithmetic mean) salary is $[latex]25,000[latex] for the employees in Department [latex]X[latex] and $[latex]35,000[latex] for the employees in Department [latex]Y[latex]. Which […]
Category: MC5: Statistics and D.I.
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[Math Center] 1. Among the [latex]9,000[latex] people attending a football game at College [latex]C[latex], there were [latex]x[latex] students from College [latex]C[latex] and [latex]y[latex] students who were not from College [latex]C[latex]. Quantity A Quantity B The number of people attending the game who were not students [latex]9000-x-y[latex] 2. In a survey of [latex]250[latex] European […]
ã5.2.bãPercentile Related Practice
[Math Center] 1. The random variable [latex]X[latex] is normally distributed. The values [latex]650[latex] and [latex]850[latex] are at the [latex]60[latex]th and [latex]90[latex]th percentiles of the distribution of [latex]X[latex], respectively. Quantity A Quantity B The value at the [latex]75[latex]th percentile of the distribution of [latex]X[latex] [latex]750[latex] 2. Eight hundred insects were weighed, and the resulting measurements, […]
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 [Math Center Home] [āĻ¨ā§āĻāĻ āĻāĻ āĻāĻ°ā§āĻāĻŋāĻā§āĻ˛āĻāĻŋ (5) Statistics and D.I. āĻŦāĻŋāĻāĻžāĻā§āĻ°Â āĻ āĻ§ā§āĻ¨ā§Â ã3ãOverlapping and Venn Diagrams āĻā§āĻ¯āĻžāĻĒā§āĻāĻžāĻ°ā§āĻ° āĻ āĻ¨ā§āĻ¤āĻ°ā§āĻāĻ¤, āĻ¯āĻžÂ ã5.3.aãāĻāĻŋāĻšā§āĻ¨ āĻĻāĻŋā§ā§ āĻĒā§āĻ°āĻāĻžāĻļ āĻāĻ°āĻž āĻšā§ā§āĻā§] ã5.3.aãāĻĄāĻžāĻŦāĻ˛-āĻ¸ā§āĻāĻŽā§āĻ¯āĻžāĻā§āĻ°āĻŋāĻā§āĻ¸ āĻāĻŦāĻ āĻā§āĻ¨ āĻĄāĻžā§āĻžāĻā§āĻ°āĻžāĻŽ Overlapping Sets āĻ¸āĻžāĻ§āĻžāĻ°āĻŖāĻ¤āĻ āĻā§āĻ¨āĻāĻŋāĻ¤ā§āĻ° āĻŦāĻž āĻā§āĻ¨āĻĄāĻžā§āĻžāĻā§āĻ°āĻžāĻŽ āĻŦā§āĻ¯āĻŦāĻšāĻžāĻ° āĻāĻ°ā§ āĻ āĻ§āĻ°āĻŖā§āĻ° āĻ āĻā§āĻ āĻ¸āĻŽāĻžāĻ§āĻžāĻ¨ āĻāĻ°āĻž āĻšā§āĨ¤ āĻ āĻāĻžā§āĻž āĻā§āĻ¨āĻĄāĻžā§āĻžāĻā§āĻ°āĻžāĻŽā§āĻ° āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤ā§ āĻĄāĻžāĻŦāĻ˛-āĻ¸ā§āĻāĻŽā§āĻ¯āĻžāĻā§āĻ°āĻŋāĻā§āĻ¸ āĻ¨āĻŋā§ā§ āĻāĻŋāĻāĻžāĻŦā§ āĻāĻāĻžāĻ°āĻ˛ā§āĻ¯āĻžāĻĒāĻŋāĻ āĻ¸ā§āĻ āĻāĻ° āĻ¸āĻŽāĻžāĻ§āĻžāĻ¨ āĻāĻ°āĻ¤ā§ āĻšā§ āĻāĻŽāĻ°āĻž āĻāĻāĻžāĻ¨ā§ āĻ¸ā§ āĻŦāĻŋāĻˇā§āĻāĻž […]
ã5.4.aãāĻĒāĻ°āĻŋāĻ¸āĻāĻā§āĻ¯āĻžāĻ¨āĻ āĻā§ āĻ¨āĻŋāĻ°ā§āĻŖā§
 [Math Center Home] [āĻ¨ā§āĻāĻ āĻāĻ āĻāĻ°ā§āĻāĻŋāĻā§āĻ˛āĻāĻŋ (5) Statistics and D.I. āĻŦāĻŋāĻāĻžāĻā§āĻ°Â āĻ āĻ§ā§āĻ¨ā§Â ã4ãAverage āĻā§āĻ¯āĻžāĻĒā§āĻāĻžāĻ°ā§āĻ° āĻ āĻ¨ā§āĻ¤āĻ°ā§āĻāĻ¤, āĻ¯āĻžÂ ã5.4.aãāĻāĻŋāĻšā§āĻ¨ āĻĻāĻŋā§ā§ āĻĒā§āĻ°āĻāĻžāĻļ āĻāĻ°āĻž āĻšā§ā§āĻā§] ã5.4.aãāĻĒāĻ°āĻŋāĻ¸āĻāĻā§āĻ¯āĻžāĻ¨āĻ āĻā§ āĻ¨āĻŋāĻ°ā§āĻŖā§ The average (or the arithmetic mean) of a set is given by the following formula: Average = sum/# of terms, which is abbreviated as [latex]A=S/n[latex] The sum, [latex]S[latex], refers to the sum of all the terms […]
ã5.2.aãPercentile Problems
 [Math Center Home] [āĻ¨ā§āĻāĻ āĻāĻ āĻāĻ°ā§āĻāĻŋāĻā§āĻ˛āĻāĻŋ (5) Statistics and D.I. āĻŦāĻŋāĻāĻžāĻā§āĻ°Â āĻ āĻ§ā§āĻ¨ā§Â ã2ãPercentile Problems āĻā§āĻ¯āĻžāĻĒā§āĻāĻžāĻ°ā§āĻ° āĻ āĻ¨ā§āĻ¤āĻ°ā§āĻāĻ¤, āĻ¯āĻžÂ ã5.2.aãāĻāĻŋāĻšā§āĻ¨ āĻĻāĻŋā§ā§ āĻĒā§āĻ°āĻāĻžāĻļ āĻāĻ°āĻž āĻšā§ā§āĻā§] Percentile A percentile is a measure used in statistics indicating the value below which a given percentage of observations in a group of observations fall. For example, the [latex]20[latex]th percentile is the value (or score) below which […]
ã5.1.aãāĻĒāĻ°āĻŋāĻ¸āĻāĻā§āĻ¯āĻžāĻ¨-āĻŽāĻ§ā§āĻ¯āĻŽāĻž āĻāĻŦāĻ āĻŦāĻŋāĻā§āĻā§āĻ¤āĻŋ
 [Math Center Home] [āĻ¨ā§āĻāĻ āĻāĻ āĻāĻ°ā§āĻāĻŋāĻā§āĻ˛āĻāĻŋ (5) Statistics and D.I. āĻŦāĻŋāĻāĻžāĻā§āĻ°Â āĻ āĻ§ā§āĻ¨ā§Â ã1ãGeneral Statistics āĻā§āĻ¯āĻžāĻĒā§āĻāĻžāĻ°ā§āĻ° āĻ āĻ¨ā§āĻ¤āĻ°ā§āĻāĻ¤, āĻ¯āĻžÂ ã5.1.aãāĻāĻŋāĻšā§āĻ¨ āĻĻāĻŋā§ā§ āĻĒā§āĻ°āĻāĻžāĻļ āĻāĻ°āĻž āĻšā§ā§āĻā§] ã5.1.aãāĻĒāĻ°āĻŋāĻ¸āĻāĻā§āĻ¯āĻžāĻ¨-āĻŽāĻ§ā§āĻ¯āĻŽāĻž āĻāĻŦāĻ āĻŦāĻŋāĻā§āĻā§āĻ¤āĻŋ Median āĻŦāĻž āĻŽāĻžāĻāĻāĻžāĻ¨ā§āĻ° āĻ¸āĻāĻā§āĻ¯āĻžāĻ The median is calculated in one of two ways, depending on the number of data points in the set. For sets containing an odd number of values, the median is the […]