3.D.2.a
Analyze data and make simple statements using information represented in picture graphs, line plots, and bar graphs.
Example Problems
John and Lauren are looking for a good neighborhood to raise their children. They want neighbors who have kids and who are fellow rollerbladers as well. The couple surveys a random sample of residents in a nice-looking neighborhood. Their results are shown below.
Lena rollerblades every morning. Omar does not have children. Zoe is an artist, but that's all we know.
Calculate the following probability based on the frequency table below.
Probability that Lena has kids = ?
Write your answer as a percent.
Lena rollerblades every morning. Omar does not have children. Zoe is an artist, but that's all we know.
Calculate the following probability based on the frequency table below.
| Kids | No kids | Row total | |
|---|---|---|---|
| Rollerblader | 41 | 9 | 50 |
| Not a rollerblader | 3 | 9 | 12 |
| Column total | 44 | 18 | 62 |
Probability that Lena has kids = ?
Write your answer as a percent.
John and Lauren are looking for a good neighborhood to raise their children. They want neighbors who have kids and who are fellow rollerbladers as well. The couple surveys a random sample of residents in a nice-looking neighborhood. Their results are shown below.
Matthew, Patrick, and Susan live in the neighborhood. Matthew rollerblades every Sunday. Patrick is a computer programmer, but that's all we know about him. Susan is a stay-at-home mom.
Calculate the following probabilities based on the frequency table below.
Probability that Matthew doesn't have kids = ?
Write your answer as a percent.
Matthew, Patrick, and Susan live in the neighborhood. Matthew rollerblades every Sunday. Patrick is a computer programmer, but that's all we know about him. Susan is a stay-at-home mom.
Calculate the following probabilities based on the frequency table below.
| Kids | No kids | Row total | |
|---|---|---|---|
| Rollerblader | 41 | 9 | 50 |
| Not a rollerblader | 3 | 9 | 12 |
| Column total | 44 | 18 | 62 |
Probability that Matthew doesn't have kids = ?
Write your answer as a percent.
John and Lauren are looking for a good neighborhood to raise their children. They want neighbors who have kids and who are fellow rollerbladers as well. The couple surveys a random sample of residents in a nice-looking neighborhood. Their results are shown below.
Diego, Mei, and Aria live in the neighborhood. Diego is very tall. Mei has never rollerbladed. Aria is a parent of twins.
Calculate the following probability based on the frequency table below.
Probability that Diego rollerblades = ?
Write your answer as a percent rounded to the nearest hundredth.
Diego, Mei, and Aria live in the neighborhood. Diego is very tall. Mei has never rollerbladed. Aria is a parent of twins.
Calculate the following probability based on the frequency table below.
| Kids | No kids | Row total | |
|---|---|---|---|
| Rollerblader | 41 | 9 | 50 |
| Not a rollerblader | 3 | 9 | 12 |
| Column total | 44 | 18 | 62 |
Probability that Diego rollerblades = ?
Write your answer as a percent rounded to the nearest hundredth.
Khan Academy ResourcesReading picture graphsReading bar graphsLine plots reviewReading picture graphs: multi-stepReading bar graphs: multi-stepRead bar graphs (2-step problems)Read picture graphs (multi-step problems)Create picture graphs (picture more than 1)Read line plots (data with fractions)Read picture graphsRead bar graphsSolving problems with picture graphs Reading bar graphs: moviesInterpreting line plots with fractions
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