Math 1 EOC Review: Stats & Geometry

The scores for the members of two quiz bowl teams are given below.

Team A: 50, 60, 60, 60, 65, 65, 80, 80

Team B: 50, 55, 65, 70, 70, 80, 85, 85

What is the difference between the mean scores for the two teams?

Here are Vic's grades on his first ten English assignments:

0, 75, 85, 75, 95, 100, 80, 100, 90, 100

His mean grade is 80 and the standard deviation of his grades is about 30 points.

If his teacher allows him to make-up the 0 and his score for that assignment is replaced with a higher score, what will happen to the mean and standard deviation of his grades?

• The mean and standard deviation will not change.

• The mean will increase and the standard deviation will not change.

• The mean and standard deviation will both increase.

• The mean will increase and the standard deviation will decrease.

The table shows the area of several states.

Delaware has an area of 2,000 square miles. Which is true if Delaware is included in the data set?

• The mean increases.

• The range decreases.

• The interquartile range decreases.

• The standard deviation increases.

The number of points scored by a basketball player in the first 8 games of a season are shown below.

15, 35, 18, 30, 25, 21, 32, 16

What would happen to the data distribution if she scored 24, 22, 27, and 28 points in her next 4 games?

• The data distribution would become less peaked and more widely spread.

• The data distribution would become less peaked and less widely spread.

• The data distribution would become more peaked and more widely spread.

• The data distribution would become more peaked and less widely spread.

Jane collected some yellow roses and red roses. She measured the lengths of their stems and drew the boxplots shown.

What is the difference between the median of the red roses and the median of the yellow roses?

• 5 cm

• 7 cm

• 10 cm

• 12 cm

Tina is considering a vacation and has obtained high-temperature data from the last 2 weeks for Miami and Los Angeles.

Which location has the least variability in temperatures?

The students in Coach Arvey's 2nd and 3rd period Math 1 classes took the same test. A summary of the results are shown in the table.

Which class has the least variability in their scores?

Describe the shape of the distribution.

• Skewed right

• Skewed left

• Approximately Normal

• Bimodal

The histogram displays the heights of student's in Ms. Clubb's class.

How many students are in the class?

• 5

• 16

• 20

• 209

The boxplots display the annual incomes of three different professions.

Which profession has the largest interquartile range?

• nuclear engineer

• police officer

• musician

• police officer and musician have the same interquartile range