Question

Your data is 105, 91, 52, 86, 100, 96, 98, 109, 96, 97.5, 84.0

Is the data of scores qualitative or quantitative? | --------- Qualitative Quantitative Neither |
---|---|

Is the data of scores discrete or continuous? | --------- Discrete Continuous Neither |

What is the level of measurement for this data? | --------- Nominal Ordinal Interval Ratio |

Which graph is a good choice for this data? | --------- Bar Graph Histogram |

What is the rough shape of these data? Use comparison of mean and median to answer this: | --------- Left Skewed Right Skewed Symmetric Uniform None |
---|---|

What is the probability that a randomly chosen number among these data points is between 95 and 100, exclusive of the ends? | ??? |

What is the probability that a randomly chosen number among these data points is not a multiple of 5? | ??? |

What is the probability that a randomly chosen number among these data points is an even number given that it is multiple of 4? |

Answer #1

Is the data of scores qualitative or quantitative? Quantitative

Is the data of scores discrete or continuous? Continuous

What is the level of measurement for this data? Ratio

What is the rough shape of these data? Left Skewed

probability that a randomly chosen number among these data points is between 95 and 100, exclusive of the ends

=4/11

probability that a randomly chosen number among these data points is not a multiple of 5 =9/11

probability that a randomly chosen number among these data points is an even number given that it is multiple of 4

=1

Data set: 105, 82, 94.5, 72.5, 92, 91, 52, 86, 100, 96, 98, 109,
96, 96, 92
Consider these 15 scores as 15 scores of 15 students in a class
to answer the questions below:
What is the 15% trimmed mean of these 15 data points?
What is the sample of mean of these 15 data points?
What is the probability that a randomly chosen number among
these data points is between 95 & 100, exclusive of the
ends?
What...

Data set: 105, 82, 94.5, 72.5, 92, 91, 52, 86, 100, 96, 98, 109,
96, 96, 92
Suppose we have assigned grades for the 15 (student) scores in
our data.
The grade count is as follows:
A – 11 students
B – 2 students
C – 1 student
D – 0 students
F – 1 student
If a committee with 2 student members is to be formed, what is
the probability of forming a committee with one grade A and...

Q28)
Data 105, 91, 52, 86, 100, 96, 98, 109, 96, 95 , 57
(i). What is the error between estimated mean and the true
mean?
{please give your answer as an absolute value}
(ii). What is the error between estimated variance and the true
variance?
{please give your answer as an absolute value}

Suppose you just obtained data from a survey in which
you learned the following information about 50 individuals: age,
income, marital status, number of vehicles in the household. For
each variable you will be asked to answer the following 2
questions:
1. State the type of data (quantitative and continuous,
quantitative and discrete, or qualitative)
2. State the type of graphical summary you might be able to draw to
provide a visual summary of the data. You do not need...

QUESTION 1 [13 MARKS]
Write down only the letter corresponding to your choice next to
the question number.
1.1. A random variable that can assume only a finite number of
values is referred to as a
a) Infinite sequence
b) Finite sequence
c) Discrete random variable
d) Discrete probability function
e) All of the above
1.2 Which one of the following statements is incorrect?
a) A data set provides information about people, objects or
other entities.
b) If the possible...

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