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Question
Excel's __________ can be used to construct a crosstabulation.a. Chart Tools
b. SUM function
c. PivotTable Report
d. COUNTIF function
Answer
This answer is hidden. It contains 1 characters.
Related questions
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Excel's __________ function can be used to compute the mode.
a. MAX
b. AVERAGE
c. MEDIAN
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a. range
b. median
c. mean
d. None of the other answers are correct.
Q:
Which of the following descriptive statistics is not measured in the same units as the data?
a. 35thpercentile
b. standard deviation
c. variance
d. interquartile range
Q:
The coefficient of variation indicates how large the standard deviation is relative to the
a. mean
b. median
c. range
d. variance
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In computing descriptive statistics for grouped data, the ____ are used to approximate the data values in each class.
a. class lower limits
b. class upper limits
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An important measure of location for qualitative data is the
a. mean
b. median
c. mode
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Q:
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Q:
Paul, a freshman at a local college just completed 15 credit hours. His grade report is presented below. Course
Credit Hours
Grades Calculus
5
C Biology
4
A English
3
D Music
2
B P.E.
1
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A survey of business students who had taken the Graduate Management Admission Test (GMAT) indicated that students who have spent at least five hours studying GMAT review guides have a probability of 0.85 of scoring above 400. Students who do not spend at least five hours reviewing have a probability of 0.65 of scoring above 400. It has been determined that 70% of the business students spent at least five hours reviewing for the test.a. Find the probability of scoring above 400.b. Find the probability that given a student scored above 400, he/she spent at least five hours reviewing for the test.
Q:
Sixty percent of the student body at UTC is from the state of Tennessee (T), 30% percent are from other states (O), and the remainder is international students (I). Twenty percent of students from Tennessee live in the dormitories, whereas 50% of students from other states live in the dormitories. Finally, 80% of the international students live in the dormitories.a. What percentage of UTC students lives in the dormitories?b. Given that a student lives in the dormitory, what is the probability that she/he is an international student?c. Given that a student does notlive in the dormitory, what is the probability that she/he is an international student?
Q:
A small town has 5,600 residents. The residents in the town were asked whether or not they favored building a new bridge across the river. You are given the following information on the residents' responses, broken down by gender.MenWomenTotalIn Favor1,4002801,680Opposed8403,0803,920Total2,2403,3605,600Let: M be the event a resident is a manW be the event a resident is a womanF be the event a resident is in favorP be the event a resident is opposeda. Find the joint probability table.b. Find the marginal probabilities.c. What is the probability that a randomly selected resident is a man and is in favor of building the bridge?d. What is the probability that a randomly selected resident is a man?e. What is the probability that a randomly selected resident is in favor of building the bridge?f. What is the probability that a randomly selected resident is a man or in favor of building the bridge or both?g. A randomly selected resident turns out to be male. Compute the probability that he is in favor of building the bridge.
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Q:
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b. 0.500
c. 0.875
d. 0.125
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On a December day, the probability of snow is .30. The probability of a "cold" day is .50. The probability of snow and a "cold" day is .15. Are snow and "cold" weather independent events?
a. only if given that it snowed
b. no
c. yes
d. only when they are also mutually exclusive
Q:
If two events are independent, then
a. they must be mutually exclusive
b. the sum of their probabilities must be equal to one
c. the probability of their intersection must be zero
d. None of the other answers is correct.
Q:
The multiplication law is potentially helpful when we are interested in computing the probability of
a. mutually exclusive events
b. the intersection of two events
c. the union of two events
d. None of the other answers is correct.
Q:
Which of the following statements is(are) always true?
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If A and B are mutually exclusive events with P(A) = 0.3 and P(B) = 0.5, thenP(A B) =a. 0.00b. 0.15c. 0.8d. 0.2
Q:
The probability of the intersection of two mutually exclusive events
a. can be any value between 0 to 1
b. must always be equal to 1
c. must always be equal to 0
d. can be any positive value
Q:
The probability of the union of two events with nonzero probabilities
a. cannot be less than one
b. cannot be one
c. cannot be less than one and cannot be one
d. None of the other answers is correct.