Line Plot and Stem and Leaf

Mrs. Hill recorded his students' scores on their last science test. 43, 52, 57, 70, 71, 74, 74, 76, 77, 78, 78, 79, 80, 82, 83, 84, 86, 86, 87, 89, 91, 92, 94, 95, 95, 97, 99, 100, 100 He wants to display this data on either a line plot or a stem-and-leaf plot. Which display should he choose?

• He should choose a line plot because a stem-and-leaf plot would have too many leaves for each stem.

• He should choose a stem-and-leaf plot because the number line for a line plot would need to be very long.

• He should choose a stem-and-leaf plot because a line plot would have too many X marks over each number.

• He should choose a line plot because a stem-and-leaf plot would only have two stems.

Tonya records the number of siblings her classmates have. 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 5, 5, 6 She wants to display this data on either a line plot or a stem-and-leaf plot. Which display should she choose?

• She should choose a line plot because a stem-and-leaf plot would have too many stems.

• She should choose a line plot because a stem-and-leaf plot would only have one stem.

• She should choose a stem-and-leaf plot because the number line for a line plot would need to be very long.

• She should choose a stem-and-leaf plot because a line plot would have too many X marks over each number.

The test scores for two classes are shown. Which sentences are true?

• The data for Class B is better displayed on a stem-and-leaf plot than the data for Class A because Class B has more stems.

• The data for Class B is better displayed on a line plot than the data for Class A because Class B has a smaller range.

• The data for Class A is better displayed on a line plot than the data for Class B because Class A has a smaller range.

The test scores for two classes are shown.

Class A: 49, 51, 55, 62, 68, 70, 73, 75, 78, 79, 81, 84, 84, 86, 88, 90, 92, 95, 97, 98

Class B: 89, 89, 90, 90, 90, 91, 92, 93, 93, 93, 93, 95, 95, 95, 96, 97, 97, 97, 98, 98

Which sentences are true?

• The data for Class B is better displayed on a stem-and-leaf plot than the data for Class A because Class B has more stems.

• The data for Class A is better displayed on a line plot than the data for Class B because Class A has a smaller range.

• The data for Class A is better displayed on a stem-and-leaf plot than the data for Class B because Class A has more stems.

This plot show the ages of people at a birthday party. How many people at the party are 20 years of age or younger ?

• 7

• 6

• 8

• 5

What is the difference between the highest score and the lowest score on the test?

• 15

• 100

• 6

• 10

How many students had more than 6 candy bars?

• 5

• 2

• 3

• 1

How many people went to the amusement park fewer than 3 times?

• 1

• 2

• 10

• 8

How many students have 12 siblings? 

• 4 students

• 7 students

• 0 students

• 1 student

How many cars were sold on Monday and Tuesday?

• 13

• 5

• 11

• 2