17. Students at a particular university must be in exactly one of the class ranks: freshman, sophomore, junior, or senior. At this university, 35% of students are freshmen and 30% are sophomores. If a student is selected at random, what is the probability that the student is either a junior or a senior? obo od of ste ainsboa gia snoda lis odw un to noihogosq adr tadt ames Artino
17. Students at a particular university must be in exactly one of the class ranks: freshman, sophomore, junior, or senior. At this university, 35% of students are freshmen and 30% are sophomores. If a student is selected at random, what is the probability that the student is either a junior or a senior? obo od of ste ainsboa gia snoda lis odw un to noihogosq adr tadt ames Artino
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Please answer 17 and 18
![17. Students at a particular university must be in exactly one of the class ranks: freshman,
sophomore, junior, or senior. At this university, 35% of students are freshmen
and 30% are sophomores. If a student is selected at random, what is the probability that
the student is either a junior or a senior?ohnd boas
od of sie ernobute sigta onoriqloo wo won zinal
odw arnobuta to noinogorą sdi lidt om
de
shiwaoilan as sme odl
odT snorly loo awo odw 8 to
18.Suppose a weather forecast reports that the probability of snow this week is 0.20. The
forecast states that if it snows this week, the probability that it snows next week is 0.29. If
it does not snow this week, the probability that it snows next week is 0.15. The tree
diagram depicts the possible weather event outcomes with the associated probabilities.
What is the probability that it will snow next week?
This week
0.20
0.80
Xew X1
Snow
No snow
Next week
0.29
0.71
sta bat som
0.15
Sensitivity: Internal & Restricted
0.85
Snow
No snow
Snow
No snow](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F714625f8-16d5-4f2b-999b-940c916ab1d5%2F706b6328-a6a9-4767-85c6-664551c9ed21%2Fv7y46hg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:17. Students at a particular university must be in exactly one of the class ranks: freshman,
sophomore, junior, or senior. At this university, 35% of students are freshmen
and 30% are sophomores. If a student is selected at random, what is the probability that
the student is either a junior or a senior?ohnd boas
od of sie ernobute sigta onoriqloo wo won zinal
odw arnobuta to noinogorą sdi lidt om
de
shiwaoilan as sme odl
odT snorly loo awo odw 8 to
18.Suppose a weather forecast reports that the probability of snow this week is 0.20. The
forecast states that if it snows this week, the probability that it snows next week is 0.29. If
it does not snow this week, the probability that it snows next week is 0.15. The tree
diagram depicts the possible weather event outcomes with the associated probabilities.
What is the probability that it will snow next week?
This week
0.20
0.80
Xew X1
Snow
No snow
Next week
0.29
0.71
sta bat som
0.15
Sensitivity: Internal & Restricted
0.85
Snow
No snow
Snow
No snow
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