Finding cumulative distribution function


Assignment:

Find the mean, variance, and standard deviation of the number of cars sold per day, using the probability distribution in problem below.

An automobile dealership records the number of cars sold each day. The data are used in calculating the following probability distribution of daily sales:

x P(x)
0 0.1
1 0.1
2 0.2
3 0.2
4 0.3
5 0.1

a. Find the probability that the number of cars sold tomorrow will be between two and four (both inclusive).
b. Find the cumulative distribution function of the number of cars sold per day.
c. Show that P(x) is a probability distribution.

Your answer must be typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format and also include references.

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Basic Statistics: Finding cumulative distribution function
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