5.4-5.7 Honors Stats Review
Authored by Beth Sanchez
Mathematics
11th - 12th Grade
Used 24+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
About 20% of cars in North America are white, 20% are black, and 15% are silver. Assume that the color of any car is independent of another. Suppose we choose 10 cars at random and identify the color. Let x=the number of white cars.
Calculate the mean x.
1
2
1.5
1.2
2.
OPEN ENDED QUESTION
3 mins • Ungraded
About 20% of cars in North America are white, 20% are black, and 15% are silver. Assume that the color of any car is independent of another. Suppose we choose 10 cars at random and identify the color. Let x=the number of white cars. The mean is 2.
Interpret the mean of x.
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3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
About 20% of cars in North America are white, 20% are black, and 15% are silver. Assume that the color of any car is independent of another. Suppose we choose 10 cars at random and identify the color. Let x=the number of white cars.
Calculate the standard deviation of x.
2
2.654
1.265
1.936
4.
OPEN ENDED QUESTION
3 mins • Ungraded
About 20% of cars in North America are white, 20% are black, and 15% are silver. Assume that the color of any car is independent of another. Suppose we choose 10 cars at random and identify the color. Let x=the number of white cars. The standard deviation is 1.265.
Interpret the standard deviation of x.
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5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In normal distribution the mean is (equal to/less than/more than) the median.
equal to
less than
more than
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In skewed right distribution the mean is (equal to/less than/more than) the median.
equal to
less than
more than
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In skewed left distribution the mean is (equal to/less than/more than) the median.
equal to
less than
more than
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