An experiment was conducted to evaluate the success of an ebola virus vaccine. the subjects were unaware of the treatment they were given. what is this type of blinding used to prevent? (4 points)
question 5 options:
1)
grounds for malpractice suits
2)
subjects assigned randomly to treatments
3)
a possible source of bias
4)
injury to the subjects
5)
the placebo effect

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Eight people were asked what the balance of their savings account at the beginning of the month was and how much it increased or decreased by the end of the month. create a scatter plot that represents the data that is shown in the table. the x-axis represents the beginning balance in thousands of dollars and the y-axis represents the change in the savings account in hundreds of dollars. name beginning balance (in thousands of dollars) change in savings account (in hundreds of dollars) jimmy 5 3 kendra 4 7 carlos 5 4 yolanda 3 1 shawn 2 5 laura 3 2 andy 5 6 georgia 4 3

The sales tax rate is 7.25%. how much tax in dollars is added on an item that costs $56.00? a. $4.06 b. $7.25 c. $14.50 d. $60.06