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Elementary statistics short exercise?

Hello,

I understand that this is the very basic of math but still, I am not able to figure this problem out. I started my first statistics class last night, I have very poor knowledge of math but I really need to understand everything from the beginning.

The problem is the following:

The Usa Today-Type chart shows the most frequent cosmetic surgeries for women in 2003.

- Liposuction 21%
- Breast augmentation 18%
- Eyelid surgery 14%
- Breast reduction 9%

(a) If women had 1,548,000 cosmetic surgeries in 2003, how many of them were for liposuction?
(b) How many were for eyelid surgery?
(c) What percentage of surgeries are not accounted for in the graph?

If possible, I would like an explanation of how to do it. I am not interested in the results themselves, but on the procedure. The teacher last night was lecturing on frequency and relative frequency. Thanks a lot.

We are assuming that it is one woman, one surgery otherwise it gets tricky!

To calculate a percentage you multiply by the number and divide by 100. So for part a , the number of women who have had liposuction is 1,548,000 x 21 / 100 = 325,080

Same process for part b, eyelid surgery. You can work that one out!

In total there is 100% to account for so for part c you just add the other numbers up and take that number away from 100. i.e. 100 – 62 = 38%

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3 Responses to “Elementary statistics short exercise?”

  1. We are assuming that it is one woman, one surgery otherwise it gets tricky!

    To calculate a percentage you multiply by the number and divide by 100. So for part a , the number of women who have had liposuction is 1,548,000 x 21 / 100 = 325,080

    Same process for part b, eyelid surgery. You can work that one out!

    In total there is 100% to account for so for part c you just add the other numbers up and take that number away from 100. i.e. 100 – 62 = 38%
    References :
    Diploma in Statistics, BSc Maths & Stats

  2. a) 1,548,000*.21 = 325,080
    b) 1,548,000* .14 = 216,720
    c) 100-21-18-14-9 = 38%
    References :

  3. c. you add up the percentage and subtract by 100% (easy)

    A. B. – you multiply the percent into the total amount of women.

    ex. breast augmentation- 18% or .18 X 1548000= 278,640 women got that done.

    hope this helps
    References :

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