stats test

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Lesson 11: Statistics Unit Test
Algebra 2 B Unlt 6: Probability and Statistics
Assessment
(2 points)
22. Suppose you are researching the eating habits of people your age. What sampling method
could you use to find the percent of students in your grade who eat five servings of fruit and
vegetables each day? What is an example of a survey question that does not have bias?
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Lesson 11: Statistics Unit Test
Algebra 2 B Unlt 6: Probablllty and Statistics
Assessment
(3 points)
23. WorkPad
Remember to show all the steps you used to complete the problem. You can use the comments
field to explain your work. Your teacher will review each step of your response to ensure you
receive proper credit for your answer.
Use the binomial expression (p+q)to calculate a binomial distribution with n= 5 and p=
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Lesson 11: Statistics Unit Tost
Algebra 2 B Unit : Probability and Statistics
24. a) The average height of sunflowers in a field is 64 in. with a standard deviation of 3.5 in. On a (3 points)
piece of paper, draw a normal curve for the distribution, including the values on the horizontal
axis at one, two, and three standard deviations from the mean Describe your drawing in as
much detail as possible, and explain how you came up with each of your labels,
b) If there are 3.000 plants in the field, approximately how many will be taller than 71 in.?
Explain how you got your answer .
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Lesson 11: Statistics Unit Test
Algebra 2 B Unlt 6: Probability and Statistics
Assessment
(1 point)
20. Identify the type of sampling method used.
A trucking company places their office phone number on the back of all of their vehicles to
receive comments on how well their employees are driving.
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Lesson 11: Statistics Unit Test
Algebra 2 B Unlt 6: Probability and Statistics
Assessment
Short Answer
Note: Your teacher will grade your response to ensure you receive proper credit for your answer.
19. You pick a number between 1,000 and 5,000. Then you flip a coin. (2 points)
Identify if the two events are independent or dependent. Explain.
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