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# Seventh Grade (Grade 7) Collecting and Interpreting Data Questions

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Grade 7 Collecting and Interpreting Data CCSS: 7.SP.A.1
A local newspaper of a small town wants to find out if the mayor of the town is popular with its citizens. Which of the following samples should be used by the newspaper?
1. random sample of people from the mayor's political party
2. a random sample of people selected from all adult citizens of the town
3. a random sample of people selected from all people registered with a political party
4. a random sample of people selected from all middle class citizens of the town
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.A.1
A store owner is considering extending the hours the store is open each day. He conducts a survey to determine if longer hours would be worth the expense. Which survey method would likely produce the most representative sample?
1. choose 20 random customers from the neighborhood
2. choose 20 full time employees from the store
3. choose the 20 customers who spend the most money in one week
4. choose the first 20 customers that come in one morning
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.A.1
A student is trying to find out the general student opinion of a school's English course. Which of the following samples is likely to be the least biased?
1. 20 students currently taking English
2. 20 students who are not taking English
3. 20 students fill out a voluntary response form
4. 20 students selected at random
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.B.3
Line plots for two sets of data are shown.

Which statement is true for the two sets of data?
1. both have the same range
2. both have the same mean
3. both have the same median
4. none of the above
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.A.1
A political party is trying to find out which candidate in an election currently has the most support from the general American population. Which of the following samples is likely to be the most biased?
1. A sample of 2000 people from the southern states
2. A sample of 2000 people of a candidate's home city
3. A sample of 2000 people from the west coast
4. A sample of 2000 people from all over the United States
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.B.3
The line plots show the number of books read by the students in Mr. Murray's class and Ms. Stein's class.

Mr. Murray's Class:
Ms. Stein's Class:

Which statement best compares the range of values for the two data sets?
1. The range is the same for both sets.
2. The range for Mr. Murray's class is 2 more than the range for Ms. Stein's class.
3. The range for Ms. Stein's class is 2 more than the range for Mr. Murray's class.
4. There is not enough information to determine the range of values from the line plots.
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.A.1
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.A.1
A magazine wants to discover what grocery store in a certain city people prefer to shop at. Which of the following samples is likely to be the least biased?
1. 35 people interviewed outside of a local superstore
2. 30 people interviewed at random
3. 45 people interviewed outside of the largest grocery store
4. 40 people from a voluntary response hotline
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.B.3
The line plots show the number of books read by the students in Mr. Murray's class and Ms. Stein's class.

Mr. Murray's Class:
Ms. Stein's Class:

Which statement best compares the median number of books read by the students in each class?
1. The median number of books read by Mr. Murray's class is 3 more than the median number of books read by Ms. Stein's class.
2. The median number of books read by Ms. Stein's class is 3 more than the median number of books read by Mr. Murray's class.
3. The median number of books read by Mr. Murray's class is 5 more than the median number of books read by Ms. Stein's class.
4. The median number of books read by Ms. Stein's class is 5 more than the median number of books read by Mr. Murray's class.
Grade 7 Collecting and Interpreting Data CCSS: 7.SP.A.1
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