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Measures of Center
Bivariate Data
Other Stats
?Mystery?
100
What is the definition of the median? 
It is the middle of a data set when you put the numbers in ascending order.
100
What type of correlation exists between the amount of rainfall and the number of umbrellas used?
Strong Positive Correlation
100

Which statistic can not be determined from a boxplot representing the scores on a math test in Mrs. DeRidder's algebra class?

1) the lowest score

2) the median score

3) the highest score

4) the score that occurs most frequently

 4) the scores that occurs most frequently
100

According to the graph How many real solutions does the quadratic equation x^2 − 2x + 5 = 0 have?

0 real solutions b/c the function does not cross the x-axis.
200

Determine the mean, median, and mode of the data set:  3, 6, 7, 9, 14, 14, 17, 19, and 20

Mean= 12.11

Median= 14

Mode = 14

200

Answer Question 2.

Choice (2)

200
Answer Question 4
2) 28%
200

Which value would be a solution for x in theinequality 47 − 4x < 7?

1) -13

2) -10

3) 10

4) 11

4) 11
300
Determine the mean for the Dot Plot #1 that represents 28 scores on a quiz. Round your answer to the nearest hundredth.
mean = 16.54
300
Determine a linear regression equation for the data shown in Table 1. If needed, round to the nearest tenth.
y = 3.4x + 12
300
Answer Question 5
Choice 3) because the residuals form a pattern.
300

The highest possible grade for a book report is 100.The teacher deducts 10 points for each day the report is late. Which kind of function describes this situation?

1) linear

2) quadratic

3) exponential growth

4) exponential decay

1)
400
Answer Question 1:
Choice 1.
400
Answer BOTH questions for Question 3.
Equation: y = 0.16x + 8.27


r = 0.94, very strong association


400
Answer Question 6. 
a) 60 percent 

b) 18

c) 15-17 year old 

400

Use the quadratic formula to the solve the equation 

3x^2 + 10x = 8?

x = 2/3 and x = -4