Question
In: Statistics and Probability
In a recent study on world happiness, participants were asked to evaluate their current lives on...
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 5.4 and a standard deviation of 2.2. Find the probability that a randomly selected study participant’s response was
c. between 3 and 7.
Solutions
orchestra answered 2 years agoRelated Solutions
In a recent study on world happiness, participants were asked to evaluate their current lives on...
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 mean response was 5.9 with a standard deviation
of 2.2. (a) What response represents the 92nd percentile? (b)
What response represents the 60th percentile? (c) What response
represents the first quartile?..
In a recent study on world happiness, participants were asked to evaluate their current lives on...
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 4.5 and a standard deviation of 2.4. Answer parts
(a)dash(d) below. (a) Find the probability that a randomly
selected study participant's response was less than 4. (b) Find
the probability that a participant's response was...
In a recent study on world happiness, participants were asked to evaluate their current lives on...
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 mean response was 5.2 with a standard deviation
of 2.6. (a) What response represents the 94th percentile? (b)
What response represents the 61st percentile? (c) What response
represents the first quartile?
In a recent study on world happiness, participants were asked to evaluate their current lives on...
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 mean response was 5.5 with a standard deviation
of 2.2. (a) What response represents the 94th percentile? (b)
What response represents the 59th percentile? (c) What response
represents the first quartile?
In a recent study on world happiness, participants were asked to evaluate their current lives on...
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 mean response was 5.8 with a standard deviation
of 2.3.
(a) What response represents the 91st percentile?
(b) What response represents the 65th percentile?
(c) What response represents the first quartile?
10. In a recent study on world happiness, participants were asked to evaluate their current lives...
10. 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 normallydistributed, with a
mean of 5.8 and a standard deviation of 2.3.
A. The probability that a randomly selected study participant's
response was less than 4 is __.
B.The probability that a randomly selected study participant's
response was between 4...
World Happiness In a recent study on world happiness, participants were asked to evaluate their current...
World Happiness 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 5.4 and a standard deviation of 2.2.
Find the probability that a randomly selected study participant’s
response was (a) less than 4, (b) between 4 and 6, and (c) more
than 8. Identify...
In a recent poll on world sadness, participants were asked to rate how sad they were...
In a recent poll on world sadness, participants were asked to
rate how sad they were on a scale of 0 to 10, with 0 being
completely unhappy and 10 being incredibly unhappy. The standard
deviation of responses was 1.9 and the mean response was 6.3.
What response would be the 90th percentile, rounded to one
decimal place?
What response would be in the third quartile, rounded to one
decimal place?
Please show your work! Any help is appreciated!
Study the current World Happiness index and discuss if there is any correction between GDP per...
Study the current World Happiness index and discuss if
there is any correction between GDP per capita & happiness.
1. Your study found that 72% of participants in your study were happy. If you were...
1. Your study found that 72% of participants in your study were
happy. If you were to interview 20 people, what is the probability
that 14 are happy? [4 marks]
2. Your study found that annual income is normally distributed
with a mean of 1600 hours and standard deviation of 250 hours. What
is the probability that a participant will work at least 1400 hours
in a year? [4 marks]
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