The following data, on the number of children born per 1,000 women, is from theCurrent Population Reports—Fertility of American Women: 2008
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Write My Essay For Me| Number of Children | 0 | 1 | 2 | 3 | 4 | 5 or more |
| Frequency | 21% | 17.0% | 45.7% | 10.6% | 3.9% | 1.8% |
What is the modal number of children born to American women in 2008?
- 1 0 children
- 2 1 child
- 3 2 children
- 4 3 children
- The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $5. According to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?
- Between 230 and 240 dollars
- Between 220 and 250 dollars
- Between 175 and 295 dollars
- Less than 220 dollars or more than 250 dollars
- Less than 230 dollars or more than 240 dollars
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A random sample of 25 customers was chosen in UMUC MiniMart between 3:00 and 4:00 PM on a Friday afternoon. The frequency distribution below shows the distribution for checkout time (in minutes).
| Checkout Time (in minutes) | Frequency | Relative Frequency | |
| 1.0 – 1.9 | 2 | ||
| 2.0 – 2.9 | 8 | ||
| 3.0 – 3.9 | |||
| 4.0 – 5.9 | 5 | ||
| Total | 25 | ||
Complete the frequency table with frequency and relative frequency.
What percentage of the checkout times was less than 3 minutes?
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