## Introduction to Statistics |

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A random committee of size 3 is selected from 4 men and 2 women .write a formula for the probability distribution of the random variable X represents the number of men on the committee.find the P(2 ≤ X ≤ 3) .

### Contents

Introduction | 1 |

Random Variables | 35 |

Properties Describing Distributions | 54 |

Copyright | |

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accept H0 alternative hypothesis analysis of variance approximately normally distributed assumed binomial experiment brand bulbs cards chi-square distribution class boundary class marks class width coin column computed confidence interval corresponding critical region degrees of freedom denoted elements equation estimate of a2 event Example Exercise expected frequencies F distribution fall Figure Find the probability formula frequency distribution frequency histogram given grouped data H0 and conclude H0 is true Hence histogram level of significance mathematics measurements median normal curve normal population null hypothesis observations obtain occurs outcomes pair parameter point estimate population means possible Pr(X Pr(Z probability distribution proportion random sample random variable Reject H0 representing the number sample mean sample space sampling distribution selected at random Solution standard deviation standard normal statistic subset test the hypothesis Theorem tion tossed total number type II error variance a2 varieties of wheat weights Wilcoxon x2 value zero