Grade 2 Statistics and Probability page 1

Name______Date______

Mathematics Grade 2

Classroom Assessments Based on Standards (MMP 8/06)

MPS Target- Statistics and Probability
  • Pose and answer questions about real-world situations by collecting and displaying data from surveys and experiments (e.g., spinners), and draw reasonable conclusions including the likelihood of events.

1. Jimmy pulled some stickers from a bag. The bag is filled with stickers. Based on the chart below, what can Jimmy say about the stickers in his bag.

Stickers pulled out of the Bag

Tally Prediction: ______

Animal ______

Star ______

Rainbow ______

Happy Face ______

2. Use the spinner to answer the questions.

  1. Which number are you least likely to spin?______2 8
  1. Which number are you most likely to spin?______

4

  1. Are you more likely to spin a 2 or a 6? ______6

3. Ada pulled some shapes from a bin. She recorded the outcomes of 10 pulls to see which shape was most likely to be pulled out.

Pull / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10
Shape / / / / / / / / / /

Use the above data to create a bar graph.

Which shape did Ada probable pull most often? ______

4. The second graders asked the third graders this question: Do you like video games or board games? This is the data the second graders collected.

Maria Betty

Andy Juan Pam

Leslie Pete

Chris Toby Brent

Tommy

Lisa Susie

Answer each question. Use the diagram above for your information.

Ex. How many children like board games? 9_ children

a. How many children like video games? _____ children

b.In total, how many children were asked which

games they like? _____ children

c. How many children like board games but not

video games? _____ children

5. Donna surveyed her friends to find out their favorite sea animals. Fill out the graph with this information.

10 people liked seals best5 people liked whales

3 people liked sea lions2 people said dolphins were their favorite

Show the votes on the bar graph.

Our Favorite Sea Animals

Seals
Sea Lions
Whales
Dolphins

1 2 3 4 5 6 7 8 9 10

Number of Votes

Use data from your graph to answer each question.

  1. Which animal is the class favorite? ______
  1. How many more children like seals than whales? ______children
  1. How many children voted in all? ______children
  1. Look at the graph. Think of a question someone can answer by looking at the graph. Write the question.

Getting to School - Mrs. Frame’s Class

By Bus

By Car

Walk

1 2 3 4 5 6 7 8 9 10

Number of Students

Your question :______

______

7. A bag of toy fish has 8 red, 4 blue, 4 yellow and 4 green fish in it. Each child in the class picks a toy fish from the bag and then puts it back. As each student picks a fish out of the bag, the color of the fish picked is marked on the graph.

Number of times a fish color is picked out of the bag

Red / /
Blue / /
Green / /
Yellow / /
  1. Which fish was picked most often? ______
  1. Barbara picks next. Is it very likely that she will pick a yellow fish?

______

  1. Based on your data, what color would you predict Barbara would pick again? ______
  1. Why? ______

______

8. Mr. Mack’s class recorded the results of their favorite fruit pop survey on a bar graph.

Favorite Fruit Pop Flavors

Grape

Strawberry

Mango

Cherry

0 1 2 3 4 5 6 7 8 9 10

Answer the questions using the graph above for your information.

Ex. What is the favorite fruit pop flavor? Strawberry

a. What is the title of the bar graph? ______

b. Does the graph show that the class liked

grape or mango better? ______

c. Which flavor does the class like least? ______

d. Were the class totals for grape and cherry

equal to the class total for strawberry? ______

9. Milton had a bag of animal Pulls of Crackers from the Bag

crackers. He recorded the Animal Tally

outcomes of 30 pulls to see elephant

which animal was least likely

to be pulled. lion

Which animal did Milton pull least bear

often? ______

10. Write likely, unlikely or equally likely to tell the chances of pulling a and a from each bag.

a.

Likely

b.

c.

d.

11. These graphs show many robots the robot teams made at the robot factory. There was a Blue Team, a Red Team and a Green Team. Use the graphs to answer the questions.

ROBOT PRODUCTION ****Each stands for 2 robots.****

Month 1 Month 2

Blue Blue

Red Red

Green Green

a. Which team made the most robots in Month 1? ______

How many robots did that team make in Month 1? ______

b. In which month did Red Team make more robots? ______

How many more than the other month? ______

c. Which team made the most robots in all? ______

d. How many robots in total were made in Month 2 by all teams? ______

Make a graph for Month 3. Month 3

Use the data in the box. Blue

Team

  • The Green Team made 4 more robots

than they made in Month 1. Red

  • The Red Team made 4 fewer robots Team

than they did in Month 2.

  • The Blue Team made the same number Green

of robots as they made in Month 1. Team

Developed by the Milwaukee Mathematics Partnership (MMP) with support by the National Science Foundation under Grant No. 0314898.