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WGU C955 Applied Probability and Statistics Final Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A €10,78
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WGU C955 Applied Probability and Statistics Final Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A

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WGU C955 Applied Probability and Statistics Final Exam (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: In a statistics class, 40 students are asked to write their age on a piece of paper and place the paper in a box. After rotating and shaking the box, 5 piece...

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  • 23 december 2023
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Voorbeeld van de inhoud

WGU C955 Applied Probability and
Statistics Final Exam (Latest 2023/ 2024
Update) Questions and Verified Answers|
100% Correct| Grade A

Q: In a statistics class, 40 students are asked to write their age on a piece of paper and place the
paper in a box. After rotating and shaking the box, 5 pieces of paper are drawn from the box at
random. The data results are as follows:
36
22
21
20
19
What is the median for this data set? A) 17
B) 21
C) 24
D) 28

Answer:
21



Q: A new video gaming site wants to know what the median age is of its adolescent population
so they can focus on activities for these clients. A data analyst recorded the ages of 12
adolescents who used the site over a three-month period. The results are given below:
Age ,Frequency
13 ,1
16 ,2
17 ,2
18 ,3
19 ,4
What is the median age of the adolescents?
A) 17.0
B) 17.2
C) 18.0
D) 18.6

,Answer:
18.0

because of the frequency



Q: The graph shows a company's profits, in thousands of dollars, for five different regions:
Based on this graph, what is the closest approximate total profit (in thousands) for all five
regions?
100
140
170
200

Answer:
140



Q: The bar chart below summarizes the final grade distribution for a statistics course:
Which percentage of students earned a B in the statistics course?
A) 9%
B) 22.5% C) 27.5%
D) 40%

Answer:
22.5%
add up the grade distribution and divide that number by students that earned a B
9/40



Q: Histogram
Answer:
displays frequencies or relative frequencies for quantitative data



Q: How are the mean, median, and mode of a sample related if the distribution is normally
distributed?

,Answer:
In a normal distribution data is symmetrical, so the mean, median, and mode are all equal.



Q: what type of histogram is this and what is the distribution between the
mean and medium?

Answer:
Symmetrical , median and mean of the
distribution are equal



Q: Which of the following best describes a measure of spread?
a) Day of the week with the most librarians on staff at BMC Library.
b) The average number of books on a bookshelf in the Reference section of the library of a
random sample of 1515 bookshelves.
c) Number of books put on reserve by library patrons in 20142014.
d) Range of pages for volumes in an Encyclopedia complete volume set.

Answer:
d) Range of pages for volumes in an Encyclopedia complete volume set.
The correct answer is d. Range is one example of a measure of spread.



Q: what type of histogram is this and what is the distribution between the mean and medium?
Answer:
positively skewed, when more data falls further to the right of

the peak of the histogram.
The mean of the distribution is greater than its median.



Q: what type of histogram is this and what is the distribution between the
mean and medium?

Answer:
negatively skewed, data falls further to the left of the peak.
The median of the distribution is greater than its mean.

, Q: Which statement is true regarding the distribution of the histogram below?
A) The mean of the distribution is greater than its median. B) The median of the distribution is
greater than its mean. C) The mean and the median of the distribution are equal.
D) The relationship between the mean and the median cannot be determined from the histogram.

Answer:
The mean of the distribution is greater than its median.



Q: what are the two displays for categorical data?
Answer:
pie charts and bar charts



Q: best when we want to display different parts of a whole
Answer:
pie charts



Q: Using the pie chart below, if 17,64817,648 of the cones sold last summer in July were
Cookie Dough and Chocolate Chip, how many total cones were sold that month?
a) 47,981 b) 49,189 c) 51,510
d) 55,150

Answer:
The correct answer is d. Cookie Dough cones make up 10% of the total cones sold and
Chocolate Chip cones make up 22%22% of the total cones sold. Therefore, these two cone
flavors represent 32%32% of the total cones sold. If 32%=17,64832%=17,648 cones, to find the
total number of cones sold, divide
17,64817,648 by 32%32%. 176480.32=55,150



Q: best used to display counts or frequencies for the categories

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