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incorrect, Instructor-created question A certain tennis player makes a successful first serve 75% of the time. Assume that each serve is independent of the others. If she serves 7 times, what's the probability she gets a) 6 serves in? b) at least exactly 5 serves in? a) The probability she gets exactly 6 serves in is 0.311. (Round to three decimal places as needed.) b) The probability she gets at least 5 serves in is 0.756. (Round to three decimal places as needed.)

Answer #1

A certain tennis player makes a successful first serve 61% of
the time. Assume that each serve is independent of the others. If
she serves 5 times, what's the probability she gets a) all 5
serves in? b) exactly 3 serves in? c) at least 3 serves in? d)
no more than 3 serves in?

A certain tennis player makes a successful first serve 67% of
the time. Assume that each serve is independent of the others. If
she serves 7 times, what's the probability she gets a) all 7
serves in? b) exactly 4 serves in? c) at least 5 serves in? d)
no more than 4 serves in?

A certain tennis player makes a successful first serve 71% of
the time. Suppose the tennis player serves 110 times in a match.
What's the probability that she makes at least 89 first serves? The
probability she makes at least 89 first serves is . ? (Use the
answers from part a to find this answer. Round to four decimal
places as needed.)

A certain tennis player makes a successful first serve 61% of
the time. Suppose the tennis player serves 70 times in a match.
What's the probability that she makes at least 56 first serves?
The probability she makes at least 56 first serves is nothing.

A certain tennis player makes a successful first serve 70% of
the time. Assume that each
serve is independent of the others. If she serves 7 times,
answer the following questions.
a. Verify the distribution of X, the number of first serves in.
(Check the binomial conditions.)
b. What is the mean number of first serves in?
c. Find the probability that she gets at least 5 first serves
in.

A certain volleyball player makes a successful serve 80% of the
time. Assume that each serve is independent of the others. If she
serves 7 times, use the information on her serve and the MINTAB
results to answer questions 1-3:
Cumulative Distribution Function
n = 7 and p = 0.8
x P( X <= x )
0
0.00001
1
0.00037
2
0.00467
3
0.03334
4
0.14803
5
0.42328
6
0.79028
7
1.00000
Describe the random variable, X.
Define random Variable...

An instructor who taught two sections of engineering statistics
last term, the first with 25 students and the second with 35,
decided to assign a term project. After all projects had been
turned in, the instructor randomly ordered them before grading.
Consider the first 15 graded projects. (a) What is the probability
that exactly 10 of these are from the second section? (Round your
answer to four decimal places.) (b) What is the probability that at
least 10 of these...

Hi, Please disregard the first question I asked the same like
this. This is the updated one.
Please answer the problem below.
Thank you,
The number of hits to a website follows a Poisson process. Hits
occur at the rate of 0.9 per minute between 7:00 P.M. and 11:00
P.M. Given below are three scenarios for the number of hits to the
website. Compute the probability of each scenario between 10 : 33
P.M. and 10:43 P.M. Interpret each result....

Question 1 2 pts
Let x represent the height of first graders in a class. This
would be considered what type of variable:
Nonsensical
Lagging
Continuous
Discrete
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Question 2 2 pts
Let x represent the height of corn in Oklahoma. This would be
considered what type of variable:
Discrete
Inferential
Distributed
Continuous
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Question 3 2 pts
Consider the following table.
Age Group
Frequency
18-29
9831
30-39
7845
40-49
6869
50-59
6323
60-69
5410
70...

1.A fair die is rolled once, and the number score is noted.
Let the random variable X be twice this score. Define the variable
Y to be zero if an odd number appears and X otherwise. By finding
the probability mass function in each case, find the expectation of
the following random variables:
Please answer to 3 decimal places.
Part a)X
Part b)Y
Part c)X+Y
Part d)XY
——-
2.To examine the effectiveness of its four annual advertising
promotions, a mail...

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