Question

A baseball player, Mickey, who bats 310 (or .310) gets an
average of 3.1 hits in ten at bats. We will assume that each time
Mickey bats he has a 0.31 probability of getting a hit. This means
Mickeys at bats are independent from one another. If we also assume
Mickey bats 5 times during a game and that x= the number of hits
that Mickey gets then the following probability mass function,
p(x), and cumulative distribution function F(x) are
reasonable:

x |
0 | 1 | 2 | 3 | 4 | 5 |

p(x) |
.156 | .351 | .316 | a | .032 | .003 |

F(x) |
.156 | .507 | .823 | b | .997 | 1.00 |

**g. Assume Mickey bats exactly 5 times (a 5-at-bat-game)
in each of four consecutive games. What is the probability he gets
2 hits in exactly 2 of those 4 games? (Getting exactly 2 hits will
be called a 2-hit-game.) **

Answer #1

A baseball player, Mickey, who bats 310 (or .310) gets an
average of 3.1 hits in ten at bats. We will assume that each time
Mickey bats he has a 0.31 probability of getting a hit. This means
Mickeys at bats are independent from one another. If we also assume
Mickey bats 5 times during a game and that x= the number of hits
that Mickey gets then the following probability mass function,
p(x), and cumulative distribution function F(x) are...

A high school baseball player has a 0.326 batting average. In
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A high school baseball player has a 0.307 batting average. (This
means that the probability that he will get a hit in any given
at-bat is 0.307.) In one game, he gets 8 at-bats. What is the
probability he will get at least 2 hits in the game?

A high school baseball player has a 0.215 batting average. In
one game, he gets 8 at bats. What is the probability he will get at
least 2 hits in the game?

A high school baseball player has a 0.258 batting average. In
one game, he gets 7 at bats. What is the probability he will get at
least 2 hits in the game?

A high school baseball player has a 0.305 batting average. In
one game, he gets 7 at bats. What is the probability he will get at
least 5 hits in the game?
A manufacturing machine has a 7% defect rate.
If 6 items are chosen at random, what is the probability that at
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A baseball player has a batting average of .211 (in other words,
he gets a hit 21.1 % of the time that he goes up to bat). If he
goes up to bat 13 times, what is the probability that he will get
exactly 4 hits?

Suppose that the probability of a baseball player getting a hit
in an at-bat is 0.2951. If the player has 32 at-bats during a week,
what's the probability that he gets no more than 11 hits?
Question 9 options: 1) 0.0617 2) 0.6668 3) 0.2099 4) 0.1233 5)
0.7901

Question A: A high school baseball player has a 0.173 batting
average. In one game, he gets 7 at bats. What is the probability he
will get at least 2 hits in the game?
QUESTION B: If a seed is planted, it has a 90% chance of growing
into a healthy plant.
If 7 seeds are planted, what is the probability that exactly 3
don't grow?

Question 10 (1 point)
When students use the bus from their dorms, they have an average
commute time of 10.288 minutes with standard deviation 3.9712
minutes. Approximately 82.66% of students reported a commute time
greater than how many minutes? Assume the distribution is
approximately normal.
Question 10 options:
1)
25.13
2)
We do not have enough information to calculate the value.
3)
4.55
4)
14.02
5)
6.55
Question 11 (1 point)
Suppose that the probability of a baseball player getting...

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