Answer:
C: Experimental
Step-by-step explanation:
This is an experimental study because you have two separate groups (the control and experimental groups) you are comparing and manipulating the results.
Answer:
Step-by-step explanation:
1/4 of the 300 skiers are beginners......1/4 of the 260 snowboarders are beginners..
so we want the total number of beginners..
the distributive property in this situation would be :
1/4(300 + 260) .......to solve this, u first have to get rid of the parenthesis. To do this, u multiple the number directly to the left of the parenthesis, by everything in the parenthesis.....u distribute it.
1/4(560).....now we multiply
560/4 = 140
OR
this way
1/4( 300 + 260) = 1/4(300) + 1/4(260) = 300/4 + 260/4 = 75 + 65 = 140
1/10 because amongst 10 balls there is only one 10th ball there by making only one possible chance of getting ball no 10