The IQs of 700 applicants to a certain college are approximately normally distributed with a mean of 115 and a standard deviatio
1 answer:
Answer: 35
Step-by-step explanation:
Given : The IQs of 700 applicants to a certain college are approximately normally distributed with a mean of 115 and a standard deviation of 11.
i.e. and
Let x denotes the IQs of applicants to college.
If the college requires an IQ of at least 97, then, the probability that students have IQ less than 97:-
[By using z-table]
Number of students will be rejected on this basis of IQ = Total students x Probability of students have IQ less than 97
= 700 x 0.0505 = 35.35 ≈ 35
Hence, about 35 students will be rejected on this basis of IQ, regardless of their other qualifications .
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Answer:
option A
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Step-by-step explanation:
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Answer:
The difference in the lengths of the two alligators = 3
Step-by-step explanation:
First, let us make the lengths improper fractions, then we will find the difference from there.
Alligator 1:
Length =
To convert to improper fraction, multiply the denominator by the whole number, and then add the denominator [(12 × 14) + 5]
Alligator 2:
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Now Let us find the difference between the lengths:
Therefore the difference in the lengths of the two alligators = 3