The following table represents a Discrete Probability Distribution for the number of days it takes John’s Garage to repair vehicles for its customers. Number of days to repair a vehicle  1 2 3 4 5 6 7 Probability 26.7% 33.6% 15.8% 13.7% 6.3% 2.4% 1.5% With the aid of a table, calculate the following mean variance, and standard deviation

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The following table represents a Discrete Probability Distribution for the number of days it takes John’s Garage to repair vehicles for its customers.

Number of days to repair a vehicle 

1

2

3

4

5

6

7

Probability

26.7%

33.6%

15.8%

13.7%

6.3%

2.4%

1.5%

With the aid of a table, calculate the following

  1. mean
  2. variance, and standard deviation
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