A convenient notation to identify the binomial probability distribution for a binomial experiment with n = 20 and p = 0.25 is B(20, 0.25).
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Q. 2The most important and commonly graphical presentation of quantitative data is the:
a. bar chart
b. histogram
c. pie chart
d. dotplot
e. time series plot
Q. 3The binomial parameter p is the probability of one success occurring in n trials when a binomial experiment is performed, while 2p is the probability of two successes.
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Q. 4The data values plotted on a line graph are connected with a straight line between each pair of successive points.
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Q. 5A binomial experiment always has three or more possible outcomes to each trial.
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Q. 6In a line chart, the horizontal axis represents time (such as months, years) and the vertical axis represents the value of the variable of interest.
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Q. 7In any binomial probability experiment, independent trials mean that the result of one trial does not affect the probability of success of any other trial in the experiment.
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Q. 8Bar charts can typically be formed with the bars vertical or horizontal without affecting the interpretation.
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Q. 9The binomial random variable x is the count of the number of successful trials that occur in n repeated (identical) independent trials; x may take on any integer value from 0 to n.
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