# 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: Standard DeviationApproximationCombinationsExpected ValuesIndependenceProbabilitiesDistributionLaw of Large NumbersSample SizeProbability.

## Sample Document Text

Stat 100 Exam 2 B Fall 2002 1. Suppose an unfair coin is tossed 20 times with probability of a head on each toss .3 and probability of a tail. 7. Let X denote the number of tails in 20 tosses. a) (10 pts) Calculate the mean and standard deviation of X. b) (10 pts) Evaluate P(ll

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