28 SAT Math Lessons to Improve Your Score in One Month(3rd Edition) by Unknown

Author:Unknown
Language: eng
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36

Let’s try (B) next:

⋅ 100 = 3.6%.

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358

Let’s try (A):

⋅ 100 = 35.8%. This is very close to 36%. So the

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answer is choice (A).

575

Note: For completeness let’s do choice (D):

⋅ 100 = 57.5%.

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7.

* This is a conditional probability. We want the probability the student

has a GPA of at least 2.5 given the student is from school A. Note that a

student has a GPA of at least 2.5 if the student has a GPA between 2.5

and 3.5 or the student has a GPA greater than 3.5. So the desired

117+36

probability is

= 𝟗/𝟐𝟓 or . 𝟑𝟔.

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8.

* Let’s let 𝑥 be the number of male students that are at least 6 feet tall,

and 𝑦 the number of female students that are at least 6 feet tall. We can

fill in the table as follows:

At least 6

Less than

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