7.12C Mini Assessment 1

The data from a survey of students between the ages of 14 and 17 is shown below. The students were asked how many days in a month they watch the local news on television or read the news in a newspaper. Which statement about the students is true based on the information in the box plot?

• More students watch the news on television than read the news in a newspaper.

• Most students watch the news on television at least 9 days a month.

• Most students read the news in a newspaper more than 10 days a month.

• Students watch the news on television or read it in a newspaper about the same number of days a month.

The shoe sizes for a random sample of the basketball team and the track team at a local high school are shown below. Which statement about the shoe sizes is supported by the data?

• More basketball team members wear a size 10 shoe than the track team members.

• More track team members wear half sizes than the basketball team.

• The average shoe size of the track team is larger tahn the average shoe size of the basketball team.

• Basketball players tend to wear bigger shoes than track participants.

The dot plots below show the number of hours a random sample of sixth graders and seventh graders spend on their cell phones in a week. Which statement is true when comparing the two populations? Which statement about the students is truewhen comparing the two populations?

• Seventh graders tend to use their cell phones more than sixth graders.

• The sixth grade data has a larger mode number of hours than the seventh grade data.

• The sixth grade data has a larger maximum value than the seventh grade data.

• The seventh grade median number of hours is 2 hours less than the median number of hours for the sixth grade.

Two seventh grade science class students planted tomato plants when they were studying plant life cycles. The data below shows the heights in centimeters of random plants in each class after a few weeks. Which statement about the plant heights is NOT supported by the data? (Select all that apply)

• Class 2’s plants are growing faster than the plants in Class 1.

• Class 2 has a greater median than Class 1.

• Class 1 has a greater range than Class 2.

• Class 1 has more plants at least 9 cm tall than Class 2.

A random sample of 21 students at Daulton Elementary and at Spenser Elementary is asked how many siblings they have. The results are: Daulton: 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 6, 7 Spenser: 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 6, 7 When comparing the two populations, which statement is NOT supported by the data? (Select all that apply)

• The students at Spenser Elementary tend to have more siblings than the students at Daulton Elementary.

• The range in the data for Daulton Elementary is the same as the range in the data for Spenser Elementary.

• The median number of siblings for Daulton Elementary is larger than the median number of siblings for Spenser Elementary.

• The students at both elementary schools tend to have 2 or more siblings.

A seventh grade teacher and a sixth grade teacher polled a random sample of their students about the number of hours they spend online each week. The results of their polls are shown in the two dot plots below. Which statement about the two populations is NOT supported by the data for the two random samples? (Select all that apply)

• Sixth graders tend to spend more time online than seventh graders.

• Seventh graders tend to spend between 4 and 6 hours online while sixth grades tend to spend between 2 and 4 hours online.

• The median number of hours for the Sixth grade is 2 hours less than the median number of hours for the seventh grade.

• The range in the number of hours online for both grades is 6 hours.

The fourth grade teacher gives a spelling pretest two days before the actual spelling test of 20 words. The data below show the number of words misspelled on each test last week. Pretest: 0, 1, 2, 2, 3, 3, 4, 5, 5, 5, 5, 6, 6, 7, 7, 7, 8, 8, 8, 8 Actual Test: 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 4, 4, 5, 5, 5 When comparing the two populations, which statement is supported by the data?

• The actual test has fewer misspelled words than the pretest.

• The median number of misspelled words on the pretest is lower than the median number of misspelled words on the actual test.

• The range on the pretest sample is lower than the range on the actual test sample.

• Four times as many students misspelled one or less words on the actual test as on the pretest.

Compare the data in the two samples below. The samples were obtained by asking people on the street how many times a week they ate out or ordered food to be delivered. Sample 1: People aged 20-40: 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 7, 7, 8 Sample 2: People aged 41-60: 0, 0, 1, 1, 1, 2, 2, 2, 4, 4, 5, 5, 5

Which statement about the two populations is supported by the data for the two random samples? (select all that apply)

• The range in Sample 1 is larger than the range in Sample 2.

• The median in Sample 1 is 4 times as large as the median in Sample 2.

• Sample 2 participants eat out or have food delivered fewer times a week than the participants in Sample 1.

• The mean of Sample 1 is between 5 and 6, and the mean for Sample 2 is between 3 and 4.

The data sets below show the number of pets owned by the person or their family in the survey. Sample 1: Under 30 years old: 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4 Sample 2: Over 30 years old: 0, 0, 0, 0, 0, 1, 1, 2, 2, 2, 2, 2, 3, 4 When comparing the two populations, which statement is NOT supported by the data?

• The median number of pets in Sample 1 is 3. In Sample 2, the median number is 2.

• The older participants (Sample 2) tend to have fewer pets than the younger participants (Sample 1).

• The range of Sample 1 is larger than the range in Sample 2.

• Four times as many participants in Sample 2 had no pets as the number of participants in Sample 1.

Compare the data in the two samples below. The samples were obtained by asking random people how many sporting events they watch on television each week. Sample 1: Under 40 years old: 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 7, 7 Sample 2: Over 40 years old: 0, 1, 1, 2, 2, 2, 2, 4, 4, 5, 5, 5 Which statement about the two populations is supported by the data for the two random samples?

• The range in Sample 1 is larger than the range in Sample 2.

• The median in Sample 1 is 3 times as large as the median in Sample 2.

• Sample 2 participants watch the same number of sporting events on television as the participants in Sample 1.

• Older people are more interested in sporting events than younger people.