Approximately 10% of all peoplea) State the random variable.are left-handed. Consider 12 randomly selected people. Find the probability, to 4 decimal places:It is possible when rounded that a probability is 0.0000d) exactly none are left-handed.e) exactly 10 are left-handed.f) at least 5 are left-handed.g) at most 4 are left-handed.h) at least 8 are left-handed.i) Is 8 an unusually high number of people that are left-handed in a sample of 12 people?Yes, because P(X <= 8) <= 0.05

Let X be the random variable from binomial distribution with probability of success (p) = 10% = 0.10…

Answered: Find the probability, to 4 decimal…

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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Of all the weld failures in a certain assembly, 80% of them occur in the weld metal itself, and the remaining 20% occur in the base metal. A sample of 20 weld failures is examined. a) What is the probability that exactly five of them are base metal failures? b) What is the probability that fewer than four of them are base metal failures? c) Find the mean number of base metal failures. Round the answer to one decimal place. d) Find the standard deviation of the number of base metal failures.
Based on a poll, among adults who regret getting tattoos, 13% say that they were too young when they got their tattoos. Assume that nine adults who regret getting tattoos are randomly selected, and find the indicated probability. Complete parts (a) through (d) below. a. Find the probability that none of the selected adults say that they were too young to get tattoos. (Round to four decimal places as needed.)
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Question 10 く Suppose you have an experiment where you toss a fair coin three times. You then count the number of heads observed over those three tosses. Use this experiment to address each of the following questions. Round solutions to three decimal places, if necessary. a) State the random variable. Select an answer b) Construct a probability distribution table for the number of heads obtained over three tosses. Enter the X-values from smallest to largest. P(x) c) Determine the shape of the probability distribution of x. The probability distribution of x is Select an answer v d) Find the mean number of heads for this distribution. The mean of a discrete probability distribution is alse potated by Select an answer MacBook
According to an SSA study, around 36% of 65-year old women will live to at least 90. If 4 65-year old women are randomly selected, find the probability that ... (Round the answers to 4 decimal places.) a) ... none of them will live to at least 90: b) ... 2 of them will live to at least 90: c) ... at most 3 will live to at least 90:

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