Consider each distribution. Determine if it is a valid probability or not, and explain your answer.

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Consider each distribution. Determine if it is a valid probability or not, and explain your answer. 

morning
Literacy Which of the following are continuous variables, and
which are discrete?
(a) Speed of an airplane
(b) Age of a college professor chosen at random
(c) Number of books in the college bookstore
(d) Weight of a football player chosen at random
(e) Number of lightning strikes in Rocky Mountain National Park on a
given day
Statistical Literacy Consider each distribution. Determine if it is a valid
probability distribution or not, and explain your answer.
(а)
1
2
(b)
1.
2
P(x)
0.25 0.60
0.15
P(x)
0.25
0.60 0.20
Statistical Literacy At State College all classes start on the hour, with the ear-
liest start time at 7 A.M. and the latest at 8 P.M. A random sample of freshmen
showed the percentages preferring the listed start times.
after 5 P.M.,
12 or 1 P.M.
1 P.M., or later
7 or 8 A.M.
9,10,or 11A.M.
Start Time
15%
259%
250
10%
% preferrina
Transcribed Image Text:morning Literacy Which of the following are continuous variables, and which are discrete? (a) Speed of an airplane (b) Age of a college professor chosen at random (c) Number of books in the college bookstore (d) Weight of a football player chosen at random (e) Number of lightning strikes in Rocky Mountain National Park on a given day Statistical Literacy Consider each distribution. Determine if it is a valid probability distribution or not, and explain your answer. (а) 1 2 (b) 1. 2 P(x) 0.25 0.60 0.15 P(x) 0.25 0.60 0.20 Statistical Literacy At State College all classes start on the hour, with the ear- liest start time at 7 A.M. and the latest at 8 P.M. A random sample of freshmen showed the percentages preferring the listed start times. after 5 P.M., 12 or 1 P.M. 1 P.M., or later 7 or 8 A.M. 9,10,or 11A.M. Start Time 15% 259% 250 10% % preferrina
Expert Solution
Step 1

A probability distribution is said to be valid, if

(i)Probabilities lie between 0 and 1.

(ii) Sum of probabilities is 1.

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