BAN 280 Midterm Exam Wray Certification Questions And Answers Verified Answers.
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Course
BAN 280
Institution
BAN 280
A summary measure computed from a population is referred to as a - correct answer Parameter
An example of a sample statistic is - correct answer Both the sample mean, X bar , and the sample standard deviation, sx
What i...
A summary measure computed from a population is referred to as a - correct answer
Parameter
An example of a sample statistic is - correct answer Both the sample mean, X bar ,
and the sample standard deviation, sx
What is the difference between a qualitative variable and a quantative variable? - correct answer
Quantitative variables always take on values that are numeric while qualitative variables take on values
that represent some characteristic or category.
The variance can never be - correct answer Negative
Which of the following provides a measure of central location for the data? - correct answer
Mean
The population mean, µ, is a measure of - correct answer central tendency of a
population
The mean of a random variable will be negative if all possible values of the random variable are
negative. - correct answer True
The population median is - correct answer computed from a census of the entire
population
The range of probability is - correct answer zero to one
In an experiment, events A and B are mutually exclusive. If P(A) = 0.6, then the probability of B - correct
answer can not be larger than 0.4
, Which of the following statements is(are) always true? - correct answer P(A) = 1 -
P(Ac)
If A and B are independent events with P(A) = 0.2 and P(B) = 0.6, then P (A intersection B) = - correct
answer 0.12
If the mean of a normal distribution is negative, - correct answer None of these
alternatives is correct.
A normal probability distribution - correct answer is a continuous probability
distribution
For any continuous random variable, the probability that the random variable takes on exactly a specific
value is - correct answer almost zero
Consider the following frequency distribution:
Classes Absolute Frequency
0 but < 10 5
10 but < 20 12
20 but < 30 15
30 but < 40 28
40 but < 50 20
50 but < 60 8
60 but < 100 12
What would be the relative frequency density for the "60 but < 100" class? - correct answer
.03
Consider the following SAMPLE data set:
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