- It is stated that the random variable X is distributed in accordance with the binomial distribution with the parameters X ~ Binomial(20, 0.8). What is the expected value of the random variable x? a) 24 B) 10 C) 8 D) 16 TO) 20

- It is stated that the random variable X is distributed in accordance with the binomial distribution with the parameters X ~ Binomial(20, 0.8). What is the expected value of the random variable x? a) 24 B) 10 C) 8 D) 16 TO) 20

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Description: 28 -It is stated that the random variable X is distributed in accordance with the binomial distribution with the parameters X ~ Binomial(20, 0.8). What is the expected value of the random variable x? a)24 B)10 C)8 D)16 TO)20

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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It is stated that the random variable X is distributed in accordance with the binomial distribution with the parameters X ~ Binomial(20, 0.8). What is the expected value of the random variable x?

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Austin decided to give Taylor Swift another chance. So, he listened through all her songs from 2009. There were 8 in total. Let the random variable X be the number of songs in which she complained about some boy. The probability of complaining about a boy is 56%. *ONLY NEED HELP WITH D* a.) Is X a discrete or continuous random variable? How do you know? b.) What are the possible values of X? c.) What is the probability distribution function of X? D.) True or False? The probability that Taylor Swift complains about a boy in at least 2 songs equals the probability that Taylor Swift complains about a boy in more than 1 song?
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13 - It is known that 25% of the customers who shop more than 100 YTL in the big shopping mall, shop with a credit card. Since the standard error of the sample distribution of the rates for n=49 customers who shopped more than 100 TL is 0.062, find the probability that 28% to 30% of these n=49 customers use a credit card?A) 0.1056 B) 0.654 C) 0.347 D) 0.342 E) 0.986
There are two boxes. In each box there are 4 cards with a different number printed on it. The four cards have been numbered as 1,2,3,4 in each box. Two cards are drawn random from each box. The random variable X represents the difference between the number on the card from box 1 minus the number on the card from box 2.a) Find the mean of this probability distribution. (i.e. Find E[X] )b) Find the variance and standard deviation of this probability distribution.(i.e. Find V[X] and SD[X])The random variables M and W are defined as follows:M = X+5 and W = (1/2)X+5c) Find E[M] and E[W].d) Find V[M] and V[W].e) Mary and William play a game using the cards in the above boxes. Randomly two cards are drawn, and Mary records his score using the random variable M and William uses the random variable W. They repeat this for a large number of times and compare their scores. Comment on any likely differences or similarities of their scores.
a) A random variable has a binomial distribution. Findi) Its expexctation
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19 - It is known that 25% of the customers who shop at the big shopping mall for more than 200.000 YTL do their shopping in installments. Since the standard error of the sample distribution of the rates for n=49 customers who shopped more than 200,000 YTL is 0.062, find the probability of using a credit card between 22% and 28% of these n=49 customers? A) 0.1647 B) 0.3688 C) 0.1628 D) 0.5632 E) 0.2685
The-number-of-telephone-calls-to-the-emergencyine can-be-modeled-asa-Poisson randomvariable.The- security-department-conducteda-study-and-foundthat-onaverage 42 callsoccur-per-hour Find | (Approximate your-answer-to-tWo-decimal placess)4 a) The probability that-exactly three.calls willoccurin.one.hour 1 b) The-probability that-at-leastthree-calls-will-occurinan-hour.4 c) The average-number-of telephcne-calls between-3:00 pm-to-5:00-pm. d) The probability that 4-calls will-occurintwo-hours. O.Concentradion os Unidos) Accesibilidad: todo correcto 79 E AC