Troy had 44 celery sticks on a tray for his party. he put peanut butter on 25% of the celery sticks. how many celery sticks on the tray had peanut butter on them?

Hello!

We know that any given percentage can be expressed as a fraction with a denominator of 100, as follows:



Because we want to find 25% of the celery sticks, we can convert this percentage into the following fraction:

= 

Now multiply this reduced fraction by the number of celery sticks:

44 ×  = 

The fraction can be reduced to a value of 11. We have now proven that 11 celery sticks received peanut butter.

I hope this helps!

You don't even have to look up the definition of 'standard deviation'.  You only
have to remember that 'smaller standard deviation' means 'less spread-out'.

First, let's find the mean (average).  It's not supposed to change:

1/7th of (65 + 71 + 77 + 80 + 82 + 90 + 96) = 561/7 = 80 and 1/7 .

Now, just pick 7 scores that total 561 and are all bunched up.

The easiest way would be 80, 80, 80, 80, 80, 80, 81 .
But that's so easy that it feels like cheating.

Let's say 77, 78, 79, 80, 81, 82, and 84 .