tound on the paintwor her paint was applied by a new method. en proportions/probabilities in this table, but frequencies. So you ha l step to take before you can calculate the mean and variance. No. of flaws No. of cars 6. 2 13 11 4 2 he mean number of flaws per car. Please give your answer to two decimal 2.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The table below summarizes the number of surface flaws found on the paintwork of
new cars following their inspection after primer paint was applied by a new method.
Note: You are not given proportions/probabilities in this table, but frequencies. So you have
an additional step to take before you can calculate the mean and variance.
No. of flaws No. of cars
3
1
2
13
3
11
4
2
2
6.
Part a) Find the mean number of flaws per car. Please give your answer to two decimal
places.
The mean number of flaws per car is: .167
Part b) Find the yariance of the number of flaws per car. Please give your answer to two
decimal places.
The variance of the number of flaws per car is:
2.
Transcribed Image Text:Next Problem The table below summarizes the number of surface flaws found on the paintwork of new cars following their inspection after primer paint was applied by a new method. Note: You are not given proportions/probabilities in this table, but frequencies. So you have an additional step to take before you can calculate the mean and variance. No. of flaws No. of cars 3 1 2 13 3 11 4 2 2 6. Part a) Find the mean number of flaws per car. Please give your answer to two decimal places. The mean number of flaws per car is: .167 Part b) Find the yariance of the number of flaws per car. Please give your answer to two decimal places. The variance of the number of flaws per car is: 2.
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