Significant Digits, Mean, Median, Mode
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- 1.A grocery list contains 25 items ranging in price from 0.49 to 5.32. If the median item cost $2.03, how many items on the list cost more than $2.03?
- A.
13
- B.
12
- C.
11
- D.
Not enough information to tell
- 2.If 10 items in a shopping cart ranged in price from $1.23 to $5.98, is it possible for the mean price to be $7.49?
- A.
Yes
- B.
No
- C.
Maybe
- 3.A science class of 11 students had the following quiz scores. What is the mean, median, and mode:10, 10, 9, 6, 5, 6, 5, 4, 5, 8, 9
- A.
Mean = 6, median = 7, mode = 9
- B.
Mean = 7, median = 6, mode = none
- C.
Mean = 7, median = 6, mode = 5
- D.
Mean = 6, median = 5, mode = 5
- 4.In a baseball game, the pitcher threw high and inside more than 80 percent of the time. Describe his accuracy and precision.
- A.
His pitches were both accurate and precise.
- B.
His pitches were neither accurate nor precise.
- C.
His pitches were accurate but not precise.
- D.
His pitches were precise but not accurate.
- 5.Which one of the following rulers are the most precise AND the most accurate?
- A.
A ruler divided into 1/10th centimeters with clean, sharp edges
- B.
A ruler divided into centimeters with clean, sharp edges
- C.
A ruler divided into 1/10th centimeters with rough, worn down edges
- D.
A ruler divided into 10-centimeter lengths with clean, sharp eduges
- 6.If everybody in a room had a watch that all showed a time of exactly 10:02 AM, but if the actual time was 10:05 AM, which statement below best describes those watches?
- A.
The watches were all very accurate.
- B.
The watches were very precisely synchronized, but not accurate.
- C.
The watches were both precise and accurate.
- D.
The watches were neither precise nor accurate.
- 7.It is possible for a series of measurements made by the same instrument to be very accurate, but not very precise.
- A.
True
- B.
False
- 8.It is possible for a series of measurements made by the same instrument to be very precise but not very accurate.
- A.
True
- B.
False
- 9.Round off the following number to 3 significant digits: 410.900
- A.
410
- B.
410.9
- C.
411
- D.
41
- 10.How many significant digits are there in the following number: 101.010
- A.
Three
- B.
Five
- C.
Six
- D.
None
- 11.How many significant digits are there in the following number: 0.001010
- A.
Two
- B.
Three
- C.
Four
- D.
Seven
- 12.Round off the following number to the hundredth's place: 211.02954
- A.
211.03
- B.
211.02
- C.
211
- D.
200
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