Question

Based on the number of voids, a ferrite slab is classified as
either high medium or low. Historically, 5% of the slabs are
classified as high, 80% as a medium, and 15% as low. A sample of 20
slabs is selected for testing. Let *X*, *Y*, and
*Z* denote the number of slabs that are independently
classified as high, medium, and low, respectively. Determine the
following. Round your answers to four decimal places (e.g.
98.7654).

(a) *P*(*X* = 1, *Y* = 17, *Z* =
3)

(b) *P*(*X* ≤ 1, *Y* = 17, *Z* =
3)

(c) *P*(*X* ≤ 1)

(d) *E*(*X*)

Answer #1

Based on the number of voids, a ferrite slab is classified as
either high medium or low. Historically, 5% of the slabs are
classified as high, 83% as medium and 12% as low. A sample of 20
slabs is selected for testing. Let X, Y, and
Z denote the number of slabs that are independently
classified as high, medium, and low, respectively. Determine the
following. Round your answers to four decimal places (e.g.
98.7654).
(a) P(X = 1, Y =...

Based on the number of voids, a ferrite slab is classied as
either high, medium, or low. Historically, 5% of the slabs are
classied as high, 90% as medium, and 5% as low. A sample of 20
slabs is selected for testing. Let X; Y; and Z denote the number of
slabs that are independently classied as high, medium, and low,
respectively
a. What is the joint probability distribution of X; Y; and Z and
what are it's parameteres (n,p1...)?...

The backoff torque required to remove bolts in a steel plate is
rated as high, moderate, or low. Historically, the probability of a
high, moderate, or low rating is 0.61, 0.25, or 0.14, respectively.
A sample of 15 bolts are selected for testing. Let X,
Y, and Z denote the number of bolts that are
independently rated as high, moderate, and low, respectively.
Determine the following probabilities.
(a)
P(X = 11, Y = 2, Z =
2)
(b)
P(X =...

Motivation Level
Talent
High
Medium
Low
Total
High
6
18
6
Medium
21
35
6
Low
12
6
2
Total
Q1. Are high motivation and high talent independent? Justify
your answer.
Adrian sells cars for Honest Joe’s car dealership. Adrian has
never sold more than three cars in a given week. Given X is the
number of cars sold by Adrian in a week, the probability
distribution of X is summarized in the following table:
X
0
1
2
3...

People were classified as either Master or Novice chess players
based on chess playing experience. Master chess players and novice
chess players were shown chess boards and then asked to recreate
them from memory. They were first presented with a board that
contained actual game placements for 10 seconds. Then they were
given board that showed random chess piece placement for 10
seconds.
Factorial Assignment
For the following, answer these questions
1. Identify the design (e.g., 2 X 2 factorial)....

Do the following problems. 1. Each of three barrels from a
manufacturing line are classified as either above (a) or below (b)
the target weight. Provide the ordered sample space. 2. The heat on
each of two soldered parts is measured and labeled as either low
(l), medium (m), or high (h). State the number of elements in the
ordered sample space. 3. Consider the set of Beatles songs with a
primary writer as either Paul McCartney (P) or John...

I. Solve the following problem:
For the following data:
1, 1, 2, 2, 3, 3, 3, 3, 4, 4, 5, 6 n = 12
b) Calculate
1) the average or average
2) quartile-1
3) quartile-2 or medium
4) quartile-3
5) Draw box diagram (Box & Wisker)
II. PROBABILITY
1. Answer the questions using the following
contingency table, which collects the results of a study to 400
customers of a store where you want to analyze the payment
method.
_______B__________BC_____
A...

2. Probability (30%). Figure out the probability in the
following scenarios.
(a) A number generator is able to generate an integer in the
range of [1, 100], where each number has equal chances to be
generated. What is the probability that a randomly generated number
x is divisible by either 2 or 3, i.e., P(2 | x or 3 | x)? (5%)
(b) In a course exam, there are 10 single-choice questions, each
worthing 10 points and having 4 choices...

1.
DDT is a pesticide banned in the United States for its danger to
humans and animals. In an experiment on the impact of DDT, six rats
were exposed to DDT poisoning and six rats were not exposed. For
each rat in the experiment, a measurement of nerve sensitivity was
recorded. The researchers suspected that the mean nerve sensitivity
for rats exposed to DDT is greater than that for rats not poisoned.
The data follow:
Poisoned rats:
12.207
16.869
25.050...

1. For a pair of sample x- and y-values, what is the difference
between the observed value of y and the predicted value of y? a) An
outlier b) The explanatory variable c) A residual d) The response
variable
2. Which of the following statements is false:
a) The correlation coefficient is unitless. b) A correlation
coefficient of 0.62 suggests a stronger correlation than a
correlation coefficient of -0.82. c) The correlation coefficient,
r, is always between -1 and 1....

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