If a women with a BMI below 25 are considered to be normal weight, how many of these women would be classified as overweight? If you choose a woman at random, what is the probability that she will be overweight. Chart below
BMI Frequency
15.0-19.9 9
20.0-24.9 12
25.0-29.9 25
30.0-34.9 6
35.0-39.9 2
40.0-44.9 1
I added up from frequency 25 and up to get 34 and added up all the frequency to get 55, and divided = 61.8% I am not certain if i did this correct. I feel confident, hopefully it's right!!
Right!
thanks!
To determine how many women with a BMI below 25 are classified as overweight, you need to find the frequency of women with a BMI above or equal to 25. Looking at the frequency table, you need to add up the frequencies in the last three rows:
25.0-29.9: 25 women
30.0-34.9: 6 women
35.0-39.9: 2 women
Adding these frequencies together: 25 + 6 + 2 = 33
Therefore, there are 33 women with a BMI equal to or greater than 25, which means they are considered overweight.
To find the probability that a woman chosen at random is overweight, you need to divide the frequency of women who are overweight (33) by the total frequency of all women (55). So the probability can be calculated as:
33 (overweight women) / 55 (total women) ≈ 0.6
Therefore, the probability that a randomly chosen woman from this sample will be classified as overweight is approximately 0.6 or 60%.