A middle school took 125 students on a field trip to the zoo. Of the 125 students, 30% had never been to a zoo before. Which of
the following is NOT equivalent to 30%?
2 answers:
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Answer:
At least 37.74% of the procedures takes between 97.6 and 125.6 minutes
Step-by-step explanation:
The percentage is the area of the standard normal distribution curve between the values 97.6 and 125.6
The standard normal variate of the given data is found as
Thus for the given values Z is calculated as under
Similarly for the other value we have
Thus the area between the calculated values can be found from standard normal distribution table to be 37.74%
The first thing we must do is find the amount of land that will be used for the 120 lots.
We must remember that 10% of the land will not be used for the lots.
We have then:
Then, we must consider the following conversion of units:
Applying the conversion we have:
Then, the amount of square feet for each lot is given by:
Answer:
There will be 32670 square feet in each lot.
We must remember that 10% of the land will not be used for the lots.
We have then:
Then, we must consider the following conversion of units:
Applying the conversion we have:
Then, the amount of square feet for each lot is given by:
Answer:
There will be 32670 square feet in each lot.