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# Probability Frequency Calculations

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The number of cars arriving at Joe Kelly's oil change and tune-up place during the last 200 hours of operation is observed to be the following:

Number of cars arriving Frequency
3 or less 0
4 10
5 30
6 70
7 50
8 40
9 or more 0
Based on the above frequencies, two digit random numbers are used and the following random number ranges have been developed.

Number of cars arriving Random Number ranges
4 00-04
5 05-19
6 20-54
7 55-79

Using the following sequence of random numbers, simulate 6 hours of car arrivals at Joe Kelly's oil change and tune-up facility. Random numbers: 92, 44, 15,77,21,38.

© BrainMass Inc. brainmass.com October 16, 2018, 10:50 am ad1c9bdddf - https://brainmass.com/economics/principles-of-mathematical-economics/probability-frequency-calculations-78353

#### Solution Preview

First of all, we should complete the random number ranges table, as it doesn't specify what happens for the range 80-99. Given the frequency table, which shows that there are some hours in which 8 cars arrive, it's clear that the ...

#### Solution Summary

The solution answers the probability frequency questions regarding number of cars.

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