Georgia Military College Probability Distribution Questions

User Generated

zry26

Mathematics

Georgia Military College

Description

1) Do a quick survey of at least 20 people. Ask them something that interests you, but that there are no more than 15 possible answers or so. For example:

How many hours of sleep did you get last night?

Hours of sleep








Number of people








Report your data in a frequency table like this one.

2) Create a probability distribution from your frequency table. For the example, for the random variable X = the number of hours a person slept last night, the probability distribution would be:

X








P(x)








3) Find the mean and standard deviation for X. Show work or state the technology that you used.

4) Interpret the mean.

5) Find the usual values of X by calculating the two standard deviation interval. State which values of X are “unusual” and which are “usual”.

6) State one thing that you learned your topic. It can be something that you were surprised about.

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Explanation & Answer

Attached.

Running head: PROBABILITY DISTRIBUTION

PROBABILITY DISTRIBUTION
Student’s Name:
Institution affiliation:
Date:

1

PROBABILITY DISTRIBUTION

2
Probability Distribution

How many days on average do you spend away from school per year?

1. N=30

Days spent

0

1

2

3

9

7

6 8

away from
school per
year
Number of
children

2) Probability distribution

X (days spent

0 1

2

3

away from
school per
year)
P(x)

9/30 7/30 6/30 8/30

=0.3 =0.233 ...


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