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lhise7 lhise7
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Posts: 400
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6 years ago
In any normal distribution, the mean, median, mode, and standard deviation are all at the same position on the horizontal axis.
 
  Indicate whether the statement is true or false

Q. 2

25 consumers were provided with a package containing two different brands of instant coffee. A week later, they were asked to rate the taste of each coffee on a scale of 1 (poor taste) to 10 (excellent taste).
 
  Is this an example of independent samples or dependent samples? Explain.

Q. 3

Consider a cell in a contingency table. Given the cell's row total of 40, the cell's column total of 50, and a sample size of 250, the cell's expected frequency:
 
  A) equals 8.
  B) equals 5.
  C) equals 40.
  D) cannot possibly be determined without additional information.

Q. 4

If P(A ) = 0.25 and P(B ) = 0.75, then A and B must be collectively exhaustive.
 
  Indicate whether the statement is true or false

Q. 5

Calculate the correlation coefficient between ice cream sales and temperature.
 
  What will be an ideal response?

Q. 6

If X is a binomial random variable with n = 20, and P = 0.5, then P(X = 20 ) = 1.0.
 
  Indicate whether the statement is true or false
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gavinbakgavinbak
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6 years ago
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lhise7 Author
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#2
6 years ago
My teacher is very rude and likes to speed his way through a lesson without letting the class ask questions. Thank you for helping me. You're a life saver Slight Smile
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