Barlow Practice Test 2

Mrs. Jones is having her class estimate the average length of the words in a 500-word passage. Which set is most likely to give a representative sample of the average length of the words in the passage?

• The first word in the passage

• 20 words selected at random from the passage

• The first 20 words of the passage

• The first word of each sentence in the passage

Tags

CCSS.RI.4.1

CCSS.RI.5.1

CCSS.RI.6.1

CCSS.RL.4.1

CCSS.RL.5.1

Jeremiah has tiles that each have a letter on them. He has 3 tiles with vowels A, E, and I. He has 5 tiles with consonants L, M, N, S, and T. He randomly selects 1 tile with a vowel and 1 tile with a consonant and records the results before replacing the tiles. He records the results as ordered pairs in which the first position is the vowel and the second is the consonant. Select the three ordered pairs that cold be results that Jeremiah records.

• (A, M)

• (I, B)

• (A, L)

• (I, M)

• (D, L)

Tags

CCSS.7.SP.C.8B

Zac randomly selects a marble from a bag of marbles. The likelihood he selects a red marble is 70%. The likelihood he selects a green marble is 0.254. Which event is more likely and why?

• It is more likely that Zac selects a green marble because 0.254 is closer to 0 than .70 is

• It is more likely that Zac selects a green marble because 0.70 is closer to 1 than 0.254 is

• It is more likely that Zac selects a red marble because 25.4% is farther from 50% than 70% is

• It is more likely that Zac selects a red marble because 0.70 is greater than 0.5 and 0.254 is less than 0.5

Tags

CCSS.7.SP.C.5

Which measure has the greatest value?

• Mean number of 7th grade students voters by movie type.

• Range number of 7th grade student voters by movie type

• Mean number of 8th-grade student voters by movie type

• Range of 8th grade student voters by movie type.

Tags

CCSS.6.SP.B.5C

Which measurement, in square cm, is closest to the area of the circle?

• 21.98

• 43.96

• 153.86

• 615.44

Tags

CCSS.7.G.B.4

Mary works at the beach renting umbrellas. She earns $250 per week and an additional $4 for every umbrella she rents. Mary wants to earn at least $500 each week. What is the minimum number of umbrellas Mary must rent each week?

• 62

• 63

• 187

• 188

Tags

CCSS.7.EE.B.4B

The probability that Jonah and Ruth are assigned the same group for a class project is 1/12. Which event has the same probability that Jonah and Ruth being assigned to the same group?

• Flipping heads on a coin three times in a row.

• Rolling an even number on a number cube two times in a row.

• Flipping heads on a coin and then rolling a 2 on a number cube.

• Flipping heads on a coin and then rolling an even number on a number cube.

A box in the shape of a rectangular prism has a length of 12 inches, a width of 9 inches, and a height of 6 inches. What is the surface area?

• 162

• 234

• 468

• 648

Tags

CCSS.7.G.B.6

The city of Fairview is conducting a survey of adult residents to determine the best location to build a community center. Which sample would best represent the city of Fairview?

• All the adults who are at the city’s playground

• Every adult who is employed by the city of Fairview

• Every tenth person on an alphabetical list of all city residents

• All of the adult residents who live in the city’s largest apartment complex.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A bag contains many slips of paper, each with a number 1 through 6 on it. The numbers ar not necessarily equally represented. A slip of paper is randomly drawn from the bag the number on the slip of paper is recorded, and then the slip of paper is put back into the bag. The process is repeated 100 times. The results are shown in the table.

Based on the results shown, what is the best prediction of how many times a slip of paper with a 5 on it will be drawn if the process is repeated a total of 400 times?

• a. 14

• b. 56

• c. 67

• d. 70

Tags

CCSS.7.SP.C.6