Four quilters are preparing patches for a quilt. When finished, the quilt will contain 200 patches. The quilters’ contributions thus far are in the table below.
Name Number if patches
Lia 65
Brian 17
Elle 88
len 6
Find the probability that a randomly chosen patch:
1. Will have been sewn by Elle?
88/176= 1/2
2. Will not have been sewn by Lia?
65/176
3. Will have been sewn by Brian or Len?
23/176
for #2, weren't 111 not sewn by Lia ?
the others look good.
I saw this same question earlier in the day.
so what to change #2 to? could you fix that one for me thanks
clearly 111/176
To find the probability that a randomly chosen patch will have been sewn by a specific quilter, you need to divide the number of patches sewn by that quilter by the total number of patches.
1. Probability that a randomly chosen patch will have been sewn by Elle:
The number of patches sewn by Elle is 88. The total number of patches is the sum of all the patches sewn by the four quilters, which is 65 + 17 + 88 + 6 = 176. Therefore, the probability is 88/176 or simplified, 1/2.
2. Probability that a randomly chosen patch will not have been sewn by Lia:
The number of patches sewn by Lia is 65. The total number of patches is still 176. To find the probability that a patch was not sewn by Lia, you subtract the number of patches sewn by Lia from the total number of patches: 176 - 65 = 111. Therefore, the probability is 111/176.
3. Probability that a randomly chosen patch will have been sewn by Brian or Len:
The number of patches sewn by Brian is 17. The number of patches sewn by Len is 6. The total number of patches is 176. To find the probability that a patch was sewn by Brian or Len, you add the number of patches sewn by Brian and Len: 17 + 6 = 23. Therefore, the probability is 23/176.