MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Field Trips
Fifty-nine teachers from a certain region were surveyed. The contingency table cross-classifies these
teachers by highest degree obtained and whether they offer field trips.
Yes (F1)
No (F2)
Total
Bachelor's (D
16
16
32
Master's (D,
20
7
27
Total
36
23
59
-....
a. How many of these teachers offered field trips?
There are
teachers who offered field trips.
b. How many of these teachers have master's degrees?
There are
teachers with a master's degree.
c. How many teachers with only bachelor's degrees offered field trips?
There are
teachers with only a bachelor's degree who offered field trips.
d. Compute the probability of event D,.
P (D1) = (Round to three decimal places as needed.)
Compute the probability of event (D2 &
P (D2 & F2) =U (Round to three decimal places as needed.)
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Transcribed Image Text:Field Trips Fifty-nine teachers from a certain region were surveyed. The contingency table cross-classifies these teachers by highest degree obtained and whether they offer field trips. Yes (F1) No (F2) Total Bachelor's (D 16 16 32 Master's (D, 20 7 27 Total 36 23 59 -.... a. How many of these teachers offered field trips? There are teachers who offered field trips. b. How many of these teachers have master's degrees? There are teachers with a master's degree. c. How many teachers with only bachelor's degrees offered field trips? There are teachers with only a bachelor's degree who offered field trips. d. Compute the probability of event D,. P (D1) = (Round to three decimal places as needed.) Compute the probability of event (D2 & P (D2 & F2) =U (Round to three decimal places as needed.)
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