lori downloaded all the pictures she took at ritas wedding into a single computer folder. she took 86 of the…

lori downloaded all the pictures she took at ritas wedding into a single computer folder. she took 86 of the 134 pictures with her camera and the remainder of them with her cell phone. of the pictures lori took with her cell phone, one out of every five was blurry. to the nearest whole percent, what is the probability that when she opens a random picture from the computer folder, it will be a blurry picture she took with her cell phone? 7% 13% 31% 56%

lori downloaded all the pictures she took at ritas wedding into a single computer folder. she took 86 of the 134 pictures with her camera and the remainder of them with her cell phone. of the pictures lori took with her cell phone, one out of every five was blurry. to the nearest whole percent, what is the probability that when she opens a random picture from the computer folder, it will be a blurry picture she took with her cell phone? 7% 13% 31% 56%

Answer

Explanation:

Step1: Calculate number of cell - phone pictures

The total number of pictures is 134, and 86 were taken with a camera. So the number of pictures taken with a cell - phone is $134 - 86=48$.

Step2: Calculate number of blurry cell - phone pictures

One out of every five cell - phone pictures was blurry. So the number of blurry cell - phone pictures is $\frac{48}{5}=9.6\approx10$.

Step3: Calculate the probability

The probability $P$ of opening a blurry cell - phone picture is the number of blurry cell - phone pictures divided by the total number of pictures. So $P=\frac{10}{134}\approx0.0746$.

Step4: Convert to percentage

To convert the probability to a percentage, multiply by 100: $0.0746\times100 = 7.46%$. Rounding to the nearest whole percent gives 7%.

Answer:

7%