Question

Lori downloaded all the pictures she took at Rita’s 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?

Answer 1

I believe that it would be roughly 31%

Answer 2

Answer:

The answer is 7%.

Step-by-step explanation:

Total number of pictures = 134

Number of pictures in camera = 86

Remaining number of pictures in cell phone = $134-86=48$

Given is, of the pictures Lori took with her cell phone, one out of every five was blurry.

Means $\frac{1}{5}$ of the 48 pictures in the cell phone cell phone were blurry.

Now this 48 pictures were taken from a lot of 134 pictures.

So, the probability that when Lori opens a random picture from the computer folder, it will be a blurry picture she took with her cell phone is :

$\frac{1}{5}*\frac{48}{134}$=0.0716

For percentage, multiply this by 100, we get:

$0.0716*100=7.16$%

Rounding this to the nearest whole percent, we have 7%.

Therefore, the answer is 7%.