# Past Exam for STAT 100 - ELEM STAT & PROB at Maryland (UMD)

## Exam Information

 Material Type: Exam 2 Professor: Staff Class: STAT 100 - ELEM STAT & PROB Subject: Statistics and Probability University: University of Maryland Term: Fall 2002 Keywords: ApproximationCombinationsStandard DeviationDistributionExpected ValuesIndependenceProbabilitiesLaw of Large NumbersSample SizeProbability. ## Sample Document Text

____________________________ ~I - ___ L __ _ Stat 100 Exam 2 A Fall 2002 1. Suppose an unfair coin is tossed 25 times with probability of a head on each toss .4 and probability of a tail .6. Let X denote the number pftails in 25 tosses. a) (10 pts) Calculate the mean and standard deviation of X. b) (10 pts) Evaluate P(14

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