Use random sampling to draw inferences about a population | Students learn to survey a small group and use those results to make reasonable guesses about a much larger group. The key idea is that the sample needs to be chosen randomly so the results are fair. | CCSS.Math.Content.7.SP.A |
Understand that statistics can be used to gain information about a population… | Surveying a small, randomly chosen group can reveal patterns about a much larger group, but only if the sample is a fair cross-section. Students learn why random selection matters and what makes a survey result trustworthy. | CCSS.Math.Content.7.SP.A.1 |
Use data from a random sample to draw inferences about a population with an… | Students use survey or experiment data from a small random group to make predictions about a much larger population. By repeating the sample multiple times, students see how much their estimates can shift from one sample to the next. | CCSS.Math.Content.7.SP.A.2 |
Draw informal comparative inferences about two populations | Students compare two groups using real data, like survey results or measurements, and draw conclusions about which group tends to be higher, more spread out, or more consistent. The comparison is informal, not a formal proof. | CCSS.Math.Content.7.SP.B |
Informally assess the degree of visual overlap of two numerical data… | Students look at two dot plots or box plots side by side and judge how much the groups overlap. They measure the gap between the two midpoints and describe it in terms of how spread out the data is. | CCSS.Math.Content.7.SP.B.3 |
Use measures of center and measures of variability for numerical data from… | Students compare two groups using their averages and spread of data to draw conclusions. For example, they might use survey results to decide which grade tends to spend more time on homework. | CCSS.Math.Content.7.SP.B.4 |
Investigate chance processes and develop, use | Students learn what makes an event likely or unlikely, then build and test simple models to predict how often it should happen. | CCSS.Math.Content.7.SP.C |
Understand that the probability of a chance event is a number between 0 and 1… | Probability is a number from 0 to 1 that shows how likely something is to happen. Close to 0 means it probably won't happen, close to 1 means it probably will, and around 1/2 means it's a coin flip. | CCSS.Math.Content.7.SP.C.5 |
Approximate the probability of a chance event by collecting data on the chance… | Students run an experiment many times, then use the results to estimate how likely an event is to happen. They can also work the other way: given a probability, predict how often something will occur over many tries. | CCSS.Math.Content.7.SP.C.6 |
Develop a probability model and use it to find probabilities of events | Students build a simple model to predict how often something should happen, like rolling a die, then compare those predictions to what actually happens. When the results don't match, students explain why. | CCSS.Math.Content.7.SP.C.7 |
Develop a uniform probability model by assigning equal probability to all… | When every outcome is equally likely, like rolling a fair number cube, students figure out the chances of something happening by dividing favorable outcomes by total outcomes. | CCSS.Math.Content.7.SP.C.7a |
Develop a probability model | Students collect real data from a repeated experiment, like flipping a coin or spinning a spinner, then use the results to estimate how likely each outcome actually is. | CCSS.Math.Content.7.SP.C.7b |
Find probabilities of compound events using organized lists, tables, tree… | Students figure out the chances of two or more things happening together, like flipping a coin and rolling a die at the same time. They use lists, tables, or branching diagrams to map out every possible outcome. | CCSS.Math.Content.7.SP.C.8 |
Understand that, just as with simple events, the probability of a compound… | When two things happen together (like flipping a coin and rolling a die), students find the probability by counting how many combined outcomes match what they want, then dividing by the total number of possible combinations. | CCSS.Math.Content.7.SP.C.8a |
Represent sample spaces for compound events using methods such as organized… | Students list every possible outcome for two-part events, like rolling two dice, using a table or branching diagram. Then they identify which combinations match a specific result, such as both dice landing on six. | CCSS.Math.Content.7.SP.C.8b |
Design and use a simulation to generate frequencies for compound events | Students design a simulation (like flipping a coin or rolling a die repeatedly) to estimate how often two or more events happen together. They run the experiment, collect the results, and use the data to predict real-world probabilities. | CCSS.Math.Content.7.SP.C.8c |