In a simple random sample of 70 automobiles registered in a certain state, 28 of them were found to have emission levels that exceed a state standard. what proportion of the automobiles in the sample had emission levels that exceed the standard? round your answer to four decimal places. be sure to express your answer as a proportion (i.e., a probability) rather than a percentage.

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Аноним Аноним · Answer 1 · 2018-04-11T13:01:39+02:00

Proportion that exceed the standard = 28/70 = 2/5 = 0.4

Answer: 0.4

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ayoushivt ayoushivt · Answer 2 · 2022-07-15T08:20:07+02:00

The proportion of the automobiles in the sample had emission levels that exceed the standard is 0.4 .

Probability is the study of the chances of an event to occur. It has a range from 0 to 1.

The total automobiles in the sample = 70

The automobiles that exceed the standard = 28

The proportion or Probability of the automobiles in the sample had emission levels that exceed the standard

= automobiles that exceed the standard/ total automobiles in the sample

= 28 /70

= 4/10 = 0.4

Therefore , The proportion of the automobiles in the sample had emission levels that exceed the standard is 0.4 .

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