7th Math Data Review + Alg Spiraling

A survey of 150 employees at a company asked which type of transportation the employee uses to get to work. The types of transportation and some of their percentages are shown on the circle graph. How many more people use a car than ride a bicycle to get to work?

• 15

• 28

• 42

• 57

The dot plot shows the number of points a player scored in each of 30 turns in a game. Which statements are best supported by the data in the dot plot? Select TWO correct answers.

• Exactly 9% of the turns were 2 points.

• Exactly 1/6 of the turns were 5 points.

• Exactly half of the turns were 3 points or more.

• Exactly 1/10 of the turns were 1 point or fewer.

• Exactly 50% of the turns were 2 or 3 points.

A company divided its salespeople into two teams and recorded the amount of each employee's sales in dollars for a week. The box plots display the results. Which statement is best supported by the information in the box plots?

• The range for Sales Team X is $10 more than the range for Sales Team Y.

• The interquartile range for Sales Team X is half the interquartile range of Sales Team Y.

• The mean for Sales Team X is $5 less than the mean for Sales Team Y.

• The interquartile range for Sales Team X is twice the interquartile range for Sales Team Y.

A salesperson made a bar graph of different brands of cars sold in a month. Based on the information in the graph, which car brands represented 60% of sales?

• Brand A and Brand B

• Brand A and Brand C

• Brand B and Brand C

• Brand C and Brand D

Students were surveyed to determine their favorite types of animals. The bar graph shows the number of students who selected each type of animal. What percentage of the students surveyed select "Bird" as their favorite type of animal?

• 20%

• 5%

• 6%

• 80%

A shoe store manager ordered various sizes of running shoes. The dot plot shows the sizes of women's shoes and men's shoes that the manager ordered. Which statement is best supported by the information in the dot plots?

• The distribution of the data for both the women's and the men's shoes are symmetric.

• The distribution of the data for the men's shoes is symmetric, but the distribution for the women's shoes is not.

• The distribution of the data for the women's shoes is symmetric, but the distribution for the men's shoes is not.

• The distribution of the data for neither the women's nor the men's shoes is symmetric.

The owner of a deli recorded the number of sandwiches in each order for a random sample of orders that were placed on Monday. The data is presented in the dot plot. The deli owner uses this information to predict the number of sandwiches in each order that will be placed next Monday. Which inference about the number of sandwiches in each order is best supported by the information in the dot plot?

• Most orders will be for 10 sandwiches.

• Fewer than 50% of the orders will be for 1 to 5 sandwiches.

• More orders will be for 1 or 2 sandwiches than for 9 or 10 sandwiches.

• More than 50% of the orders will be for 6 or more sandwiches.

The manager of a music store surveyed a random sample of customers who shop in the store about their favorite type of music. The table shows the number of customers who selected each type of music. Based on the information in the table, which inference about the favorite type of music of all the customers who shop in the music store appears to be valid?

• They are certain to select rock or pop music.

• They are less likely to select country or rap music than rock music.

• They are more likely to select country music than jazz, classical, or rap music.

• They are certain to select any type of music other than jazz music.

Which graph best represents a line where each value of y is 3 more than 1/2 the value of x?

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What is the solution to the equation 4 + 1/2x - 8 = 12?

• x = 4

• x = 8

• x = 16

• x = 32