Homework Answers
A study of 500 college students was conducted to determine the number of freshman and Sophmore students who are taking math class in coming fall semester.
| Taking math in fall | Not Taking math in fall | Total | |
| Freshman | 130 | 110 | 240 |
| Sophmore | 135 | 125 | 260 |
| Total | 265 | 235 | 500 |
Probability table based on above information
| Probability | Taking math in fall | Not Taking math in fall | P(X) |
| Freshman | 0.26 | 0.22 | 0.48 |
| Sophmore | 0.27 | 0.25 | 0.52 |
| P(Y) | 0.53 | 0.47 | 1 |
(a) Probability that a randomly students is Sophmore given that
they are taking math in the fall is 
Answer D. 0.509
(b) Probability that a randomly students is Sophmore and is taking math in the fall is
Answer D. 0.270
(c) Probability that a randomly students is Sophmore or they are taking math in the fall is
Answer C. 0.780
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A study was conducted to determine success rates of students enrolled in the Statistics courses o...
A study was conducted to determine success rates of students
enrolled in the Statistics courses offered at South Plains College
for the fall semester of 2015. A random sample of 14 students was
taken, and we recorded each
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race, and the attendance record (# of classes not attended this
semester). Use the results from the following table to answer all
parts of #2
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A study was conducted to determine success rates of students
enrolled in the Statistics courses offered at South Plains College
for the fall semester of 2015. A random sample of 14 students was
taken, and we recorded each
student’s age, final average, gender, # hours worked per week,
race, and the attendance record (# of classes not attended this
semester). Use the results from the following table to answer all
parts of #2
f. For the age variable, construct 3...
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