You are deciding between two cars with different engines and want the bigger of the two. one engine displaces 350 cubic inches.
2 answers:
Answer: 235.4724 cubic centimeters.
Step-by-step explanation:
We know that 1 inch=2.54 centimeters
Then 1 cubic inches= cubic centimeters
⇒ 1 cubic inches= cubic centimeters
⇒350 cubic inches= cubic centimeters
Since, the other displaces 5,500 cubic centimeters.
and 5735.4724< 5500
Difference =
Hence, the bigger engine larger than the smaller one by 235.4724 cubic centimeters.
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Answer:
4.65% probability that a randomly selected customer takes more than 10 minutes
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this question, we have that:
Probability that a customer takes more than 10 minutes:
This is 1 subtracted by the pvalue of Z when X = 10. So
has a pvalue of 0.9535
1 - 0.9535 = 0.0465
4.65% probability that a randomly selected customer takes more than 10 minutes