ATI TEAS Guide To Math  Data Intrepretation Question Review
ATI TEAS Math Data Interpretation
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Question 1 of 8
1. Question
Most companies increase their customers with more advertising.
Which of the following is the dependent variable in the statement above?
Correct
In this statement, customers is the dependent variable. The number of customers is influenced by the level of advertising, which is the independent variable.
Incorrect
In this statement, customers is the dependent variable. The number of customers is influenced by the level of advertising, which is the independent variable.

Question 2 of 8
2. Question
A scientist is presenting a report on the results of a survey that shows the number of people taking different medications to treat the same illness. Which of the following graphs should the scientist use to visually emphasize the percentage of patients taking each medication?
Correct
A circle graph shows visually how a whole is divided into parts. It would be the best choice to use to visually emphasize the percentage of patients taking each medication.
Incorrect
A circle graph shows visually how a whole is divided into parts. It would be the best choice to use to visually emphasize the percentage of patients taking each medication.

Question 3 of 8
3. Question
The information provided below shows the number of products held in the inventory of a warehouse over a period of 5 months.
January 20 thousands, February 30 thousands, March 50 thousands, April 35 thousands, May 50 thousands
Which of the following is the difference between the largest and smallest monthly inventories shown in the information?
Correct
The largest monthly inventory is 50,000 products, held in March and May. The smallest monthly inventory is 20,000 products, held in January. To find the difference between these two, use subtraction: 50,000 – 20,000 = 30,000.
Incorrect
The largest monthly inventory is 50,000 products, held in March and May. The smallest monthly inventory is 20,000 products, held in January. To find the difference between these two, use subtraction: 50,000 – 20,000 = 30,000.

Question 4 of 8
4. Question
The information below shows the distribution of 257 units shipped by particular vendors to a company over a 6month period.
70 from Hi Side, 33 from Lighttask, 29 from Acme, 18 from Severn, 42 from Ace Hill, 65 from Laurel
The units shipped by Severn represent what percentage of all units shipped by vendors during that period? (Round the solution to the nearest tenth of a percent.)
Correct
According to the information, Severn shipped 18 units during the 6month period. This amounts to 18/257 of the total units shipped. Divide 18 by 257 to determine the percentage: 18 ÷ 257 = 0.07. Convert this decimal to a percentage by moving the decimal point to the right two places. The units shipped by Severn represent 7% of all units shipped.
Incorrect
According to the information, Severn shipped 18 units during the 6month period. This amounts to 18/257 of the total units shipped. Divide 18 by 257 to determine the percentage: 18 ÷ 257 = 0.07. Convert this decimal to a percentage by moving the decimal point to the right two places. The units shipped by Severn represent 7% of all units shipped.

Question 5 of 8
5. Question
A law firm handled 116 cases over a period of one year. 17 for criminal, 35 for malpractice, 21 for divorce, 19 for custody, and 24 for probate.
Custody cases represent what percentage of all cases handled by the firm that year? (Round the solution to the nearest tenth of a percent.)
Correct
The firm handled 19 custody cases during the year, or 19/116 . Divide 19 by 116 to determine the percentage: 19 ÷ 116 is approximately 0.164. Convert this decimal to a percentage by moving the decimal point to the right two places. Custody cases represent 16.4% of all cases handled by the firm.
Incorrect
The firm handled 19 custody cases during the year, or 19/116 . Divide 19 by 116 to determine the percentage: 19 ÷ 116 is approximately 0.164. Convert this decimal to a percentage by moving the decimal point to the right two places. Custody cases represent 16.4% of all cases handled by the firm.

Question 6 of 8
6. Question
The information provided below shows the number of miles Paul drove each day last week.
Monday 15, Tuesday 17, Wednesday 15, Thursday 16, Friday 19, Saturday 43, Sunday 5
Which of the following is true of the data set?
Correct
Find the median, mode, and range. Put the values in increasing order: 5, 15, 15, 16, 17, 19, 43. There are 7 values, so the median is the middle value, 16. Mode is 15. The range is 43 – 15 = 28. Ordering those values gives you mode < median < range.
Incorrect
Find the median, mode, and range. Put the values in increasing order: 5, 15, 15, 16, 17, 19, 43. There are 7 values, so the median is the middle value, 16. Mode is 15. The range is 43 – 15 = 28. Ordering those values gives you mode < median < range.

Question 7 of 8
7. Question
Stock prices usually decrease when investors panic.
Which of the following is the independent variable in the event described above?
Correct
In this statement, the cause is panic of investors, and the effect is the decrease in stock prices. Investor panic is the independent variable, because it influences the outcome of stock price decline.
Incorrect
In this statement, the cause is panic of investors, and the effect is the decrease in stock prices. Investor panic is the independent variable, because it influences the outcome of stock price decline.

Question 8 of 8
8. Question
Which of the following describes negative covariance?
Correct
Negative covariance occurs when one variable increases as the other decreases. This is the case in choice A. As time increases, stress decreases.
Incorrect
Negative covariance occurs when one variable increases as the other decreases. This is the case in choice A. As time increases, stress decreases.