(a) Find the probability that a randomly selected study participant's response was less than 4. The probability that a randomly selected study participant's response was less than 4 is . (Round to four decimal places as needed.) (b) Find the probability that a randomly selected study participant's response was between 4 and 6. The probability that a randomly selected study participant's response was between 4 and 6 is (Round to four decimal places as needed.) (c) Find the probability that a randomly selected study participant's response was more than 8. The probability that a randomly selected study participant's response was more than 8 is (Round to four decimal places as needed.) (d) Identify any unusual events. Explain your reasoning. Choose the correct answer below. O A. There are no unusual events because all the probabilities are greater than 0.05. O B. The events in parts (a), (b), and (c) are unusual because all of their probabilities are less than 0.05. OC. The event in part (a) is unusual because its probability is less than 0.05. O D. The events in parts (a) and (c) are unusual because their probabilities are less than 0.05.

(a) Find the probability that a randomly selected study participant's response was less than 4. The probability that a randomly selected study participant's response was less than 4 is . (Round to four decimal places as needed.) (b) Find the probability that a randomly selected study participant's response was between 4 and 6. The probability that a randomly selected study participant's response was between 4 and 6 is (Round to four decimal places as needed.) (c) Find the probability that a randomly selected study participant's response was more than 8. The probability that a randomly selected study participant's response was more than 8 is (Round to four decimal places as needed.) (d) Identify any unusual events. Explain your reasoning. Choose the correct answer below. O A. There are no unusual events because all the probabilities are greater than 0.05. O B. The events in parts (a), (b), and (c) are unusual because all of their probabilities are less than 0.05. OC. The event in part (a) is unusual because its probability is less than 0.05. O D. The events in parts (a) and (c) are unusual because their probabilities are less than 0.05.

Name: In a recent study on world happiness, participants were asked to eval
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Description: In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represents the worst possible life and 10represents the best possible life. The responses were normally distributed, with

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

In a recent study on world happiness, participants were asked to evaluate their current lives on a scale from 0 to 10, where 0 represents the worst possible life and 10
represents the best possible life. The responses were normally distributed, with a mean of 5.9 and a standard deviation of 1.8. Answer parts (a)-(d) below.
(a) Find the probability that a randomly selected study participant's response was less than 4.
The probability that a randomly selected study participant's response was less than 4 is
(Round to four decimal places as needed.)
(b) Find the probability that a randomly selected study participant's response was between 4 and 6.
The probability that a randomly selected study participant's response was between 4 and 6 is
. (Round to four decimal places as needed.)
(c) Find the probability that a randomly selected study participant's response was more than 8.
The probability that a randomly selected study participant's response was more than 8 is
(Round to four decimal places as needed.)
(d) Identify any unusual events. Explain your reasoning. Choose the correct answer below.
A. There are no unusual events because all the probabilities are greater than 0.05.
B. The events in parts (a), (b), and (c) are unusual because all of their probabilities are less than 0.05.
C. The event in part (a) is unusual because its probability is less than 0.05.
D. The events in parts (a) and (c) are unusual because their probabilities are less than 0.05.

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