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

Answer:

7%