Education.com
Try
Brainzy
Try
Plus

# Data Analysis, Statistics, and Probability Practice Problems: GED Math

By
Updated on Jul 7, 2011

Review these concepts if necessary:

### Problems

1. Find the mean for the set of data: {96, 90, 78, 90, 92}.
1. 18
2. 89.2
3. 90
4. 89.5
5. 71.2
2. The fuel efficiency for a truck varies, depending on whether the truck is traveling uphill or downhill. The following efficiencies were recorded for one hour at ten-minute intervals, in miles per gallon: 16, 22, 14, 28, 16, 12. What is the mean fuel efficiency for the truck in this hour?
1. 16 miles per gallon
2. 12 miles per gallon
3. 18 miles per gallon
4. 6 miles per gallon
5. 20 miles per gallon
3. Given the set of numbers {26, 27, 29, 27, 29, 27, 30, 30}, which of the following is true?
1. The mean equals the median.
2. There are three modes.
3. The median is greater than the mode.
4. The median is 27.
5. The median equals the mode.
4. In the set of data {15, 12, 13, 11, 14, 10, 8}, what is the mode?
1. 0
2. There is no mode.
3. 11
4. 7
5. 12
5. On a standard die, what is the probability of rolling a 3?
6. Questions 6 and 7 refer to the following information.

7. On what date and in what location was there the greatest jump in the price of gasoline from one week to the next?
1. April 23 on the West Coast
2. April 30 in the Midwest
3. April 30 on the West Coast
4. May 7 on the East Coast
5. May 7 in the Midwest
8. Based on the information in the graph, which of the following is the best prediction of the price per gallon of gasoline on the West Coast for the week following May 7?
1. \$2.64
2. \$2.71
3. \$2.76
4. \$2.82
5. \$2.86

10. In which academic year did the number of women receiving bachelor's degrees exceed the number of men receiving bachelor's degrees for the first time?
1. 1929–1930
2. 1939–1940
3. 1969–1970
4. 1979–1980
5. 1989–1990
11. Approximately how many more women received a bachelor's degree in 1989–1990 than men?
1. 150,000
2. 120,000
3. 60,000
4. 35,000
5. 15,000
1. Find the mean of the following set of data: {32, 34, 34, 35, 37, 38, 34, 42}.
1. 34
2. 35.75
3. 10
4. 36
5. 34.5
2. What is the mode of {71, 68, 71, 77, 65, 68, 72}?
1. 71
2. 68
3. none
4. 9
5. 71 and 68
3. The ages at the day camp were 9, 12, 9, 10, 9, 13, 11, 8, 17, 10. What is the median age?
1. 10
2. 9
3. 10.8
4. 11
5. 10.4
4. Calculate the range of these temperatures: 43°, 47°, 43°, 52°, 42°, 78°, 84°, 80°.
1. 43°
2. 42°
3. 37°
4. 47°
5. 58.625°
5. When rolling two dice, what is the probability of rolling a sum of 8?
6.

The following table gives the annual average hourly wages of production workers in the United States in the 1990s. The data is supplied by the U.S. Department of Labor.

7. In which year was the increase in hourly earnings the least from the previous year?
1. 1992
2. 1994
3. 1996
4. 1997
5. 1998
8. What was the approximate percent increase to the nearest whole percent in hourly earnings from 1990 to 1996?
1. 10%
2. 15%
3. 18%
4. 20%
5. 120%

10. Approximately how many small cars were sold in the United States in 1998?
1. 500,000
2. 1,000,000
3. 2,000,000
4. 3,000,000
5. 4,000,000
11. In 1999, about how many times were more midsize cars sold than luxury and large cars combined?
1. eight times as many
2. five times as many
3. three times as many
4. twice as many
5. the same