Statistics Review

​STATISTICS

​0-2

​Based on the shape of the data, what conclusions can be drawn about the number of hours students spend on the screen?

​Shapes of Histograms:

Multiple Choice

Determine the shape that best matches the histogram:

• Skewed Left

• Approximately Normal

• Skewed Right

• None of the above

Multiple Choice

What color bar would the mode fall?

Remember MODE is the number that happens the most.

• red

• blue

• orange

• yellow

Multiple Choice

Determine the shape that best matches the histogram:

• Skewed Left

• Approximately Normal

• Skewed Right

• None of the above

Multiple Choice

What interval would the mean fall?

Remember MEAN is the average and will be lower than the mode and median in a left skewed histogram.

• 91-100

• 81-90

• 71-80

• 61-70

Multiple Choice

Determine the shape that best matches the histogram:

• Skewed Left

• Approximately Normal

• Skewed Right

• None of the above

Multiple Choice

What interval would the mean, median, and mode fall in a symmetrical histogram?

• 41-50

• 51-60

• 61-70

• 71-80

Fill in the Blanks

What is the average height of GIRLS in Carmen's class?

Open Ended

Explain what you did to determine the average height of the GIRLS in Carmen's class?

Fill in the Blanks

What is the average height of BOYS in Carmen's class?

Fill in the Blanks

What is the average height of ALL of the students in Carmen's class?

​MEAN = AVERAGE of the data set

MEDIAN = MIDDLE number of the data set

MODE = number that is repeated the MOST in a data set

​Half of the campers finished at about 59 minutes.

One-fourth of the campers finished at 61 minutes

Three-fourths of the campers finished at 64 minutes or higher

Half or 50% of the campers finished between 41 and 59 minutes

Multiple Select

A group of students in a summer camp participated in a hiking competition. Campers recorded the following times for their hike (in minutes).

Which of the following statements are true?

• Half of the campers finished at about 59 minutes.

• One-fourth of the campers finished at 61 minutes

• Three-fourths of the campers finished at 64 minutes or higher

• Half or 50% of the campers finished between 41 and 59 minutes

​Creating a BOX Whisker Plot

Open Ended

Describe the spread of the overall data for the box plot and explain what this tells you about the data?

Multiple Choice

What will happen to his grade if he scores a 50 on the quiz. Select the BEST response.

• His average will decrease significantly because 50 is much lower than his current average.

• His average will remain the same since the 50 will be balanced by his higher grades.

• His average will INCREASE slightly because he has more grades now.

• His average will DECREASE slightly because a single low score doesn't impact the overall average much.

Open Ended

What will happen to his grade if the teacher

drops the lowest score from the original 5

scores?