I’m pretty sure they both are functions
Answer:
-1.683
Step-by-step explanation:
Given :
Group 1 :
x1 = 667 ; n1 = 10 ; s1 = 20
Group 2 :
x2 = 679 ; n2 = 14 ; s2 = 15
The test statistic assuming equal variance :
x1 - x2 / √[Sp² * (1/n1 + 1/n2)]
sp² = [(n1 - 1)*s1² + (n2 - 1)*s2²] ÷ (n1 + n2 - 2)
Sp² = [(10 - 1)*20² + (14 - 1)*15²] = 296.59
Test statistic =
(667 - 679)/ √[296.59 * (1/10 + 1/14)]
-12 / 7.1304978
Test statistic = - 1.682
You have to distribute the 7 so the final answer will be -49-42x
Answer:
Step-by-step explanation:
As you can see, she bought 8 muffins and 2 of them were apple, and the other 2 were banana.
( The rest were blueberry )
Since her family ate the APPLE and BANANA muffins, it's asking you to find the FRACTION of the muffins they ate. So 4 banana and apple muffins outta 3 varieties ( Total 8 muffins ) and 4 blueberry left.
So it's like 4 outta 8
idk I think im wrong :,U
