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docker41 [41]
3 years ago
13

A total of 500 married working couples were polled about their annual salaries, with the following information resulting: Husban

d Wife Less than More than $25,000 $25,000 Less than $25,000 212 198 More than $25,000 36 54 For instance, in 36 of the couples, the wife earned more and the husband earned less than $25,000. If one of the couples is randomly chosen, what is (a) the probability that the husband earns less than $25,000
Mathematics
1 answer:
Dimas [21]3 years ago
7 0

Answer:

36/500

Step-by-step explanation:

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As both the mean and standard deviation are in the desired ranges, the tool passes the technical control.

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The mean of the batch is the sum of all values divided by the number of items. So

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Standard deviation:

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