Hi! so in order to do this problem, you need to figure out what percent 76 is of 80. you can do this by dividing 76 by 80! so just do 76/80, and convert to a percent!
Answer:
True.
Step-by-step explanation:
If we have for a sample of size n=25 a sample variance of 400, the standard error can be written as:

This way of calculating the standard error is the same used for estimating the standard deviation of the sample means for samples of size n=25.
1/3 of 42 = 14 ( Alyanna)
4/7 of 42 = 24 ( Rose )
24+14= 38
42-38= 4
There are 4 cards left to sign
The scale factor is 5
-2*5 is=-10
6*5=30
55x4=220+55➗2=27.5
Therefore the answer is 247.5