In the probability distribution to the right, the random variable X represents the number of hits a baseball player obtained in a game over the course of a season. Complete parts (a) through (f) below.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.4: Expected Value
Problem 20E
icon
Related questions
Question
4:45
K
In the probability distribution to the right, the random variable X represents the number of hits a
baseball player obtained in a game over the course of a season. Complete parts (a) through (f)
below.
(a) Verify that this is a discrete probability distribution.
This is a discrete probability distribution because
and the
of the probabilities is.
(Type whole numbers. Use ascending order.)
(b) Draw a graph of the probability distribution. Describe the shape of the distribution.
Graph the probability distribution. Choose the correct graph below.
O A.
0.4
0.3-
0.2-
0.1+
0 1 2 3 4 5
Number of Hits
The distribution
Q
B.
Describe the shape of the distribution.
0.4-
0.3-
0.2-
0.1+
0-
0 1 2 3 4 5
Number of Hits
and is
|||
(c) Compute and interpret the mean of the random variable X.
Hx =
hits
(Type an integer or a decimal. Do not round.)
Which of the following interpretations of the mean is correct?
=
Q
O C.
(Type an integer or a decimal. Do not round.)
Vo) 1
LTE 4G 20%
0.4-
0.3+
0.2
0.1+
0-
σx = =hits
(Round to three decimal places as needed.)
(e) What is the probability that in a randomly selected game, the player got 2 hits?
O
0 1 2 3 4 5
Number of Hits
between
(Type an integer or a decimal. Do not round.)
(f) What is the probability that in a randomly selected game, the player got more than 1 hit?
Q
D.
0.4+
0.3-
0.2
0.1-
0
and
X
0
1
2
3
4
5
OA. Over the course of many games, one would expect the mean number of hits per game to be the mean of the
random variable.
P(x)
0.1679
B. The observed number of hits per game will be equal to the mean number of hits per game for most games.
C. In any number of games, one would expect the mean number of hits per game to be the mean of the random
variable.
D. The observed number of hits per game will be less than the mean number of hits per game for most games.
(d) Compute the standard deviation of the random variable X.
0.3345
0.2863
0.1497
0.0367
0.0249
inclusive,
0 1 2 3 4 5
Number of Hits
Transcribed Image Text:4:45 K In the probability distribution to the right, the random variable X represents the number of hits a baseball player obtained in a game over the course of a season. Complete parts (a) through (f) below. (a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because and the of the probabilities is. (Type whole numbers. Use ascending order.) (b) Draw a graph of the probability distribution. Describe the shape of the distribution. Graph the probability distribution. Choose the correct graph below. O A. 0.4 0.3- 0.2- 0.1+ 0 1 2 3 4 5 Number of Hits The distribution Q B. Describe the shape of the distribution. 0.4- 0.3- 0.2- 0.1+ 0- 0 1 2 3 4 5 Number of Hits and is ||| (c) Compute and interpret the mean of the random variable X. Hx = hits (Type an integer or a decimal. Do not round.) Which of the following interpretations of the mean is correct? = Q O C. (Type an integer or a decimal. Do not round.) Vo) 1 LTE 4G 20% 0.4- 0.3+ 0.2 0.1+ 0- σx = =hits (Round to three decimal places as needed.) (e) What is the probability that in a randomly selected game, the player got 2 hits? O 0 1 2 3 4 5 Number of Hits between (Type an integer or a decimal. Do not round.) (f) What is the probability that in a randomly selected game, the player got more than 1 hit? Q D. 0.4+ 0.3- 0.2 0.1- 0 and X 0 1 2 3 4 5 OA. Over the course of many games, one would expect the mean number of hits per game to be the mean of the random variable. P(x) 0.1679 B. The observed number of hits per game will be equal to the mean number of hits per game for most games. C. In any number of games, one would expect the mean number of hits per game to be the mean of the random variable. D. The observed number of hits per game will be less than the mean number of hits per game for most games. (d) Compute the standard deviation of the random variable X. 0.3345 0.2863 0.1497 0.0367 0.0249 inclusive, 0 1 2 3 4 5 Number of Hits
Expert Solution
steps

Step by step

Solved in 4 steps with 1 images

Blurred answer
Recommended textbooks for you
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL