Presuming the question is "Which sum is closest to 1".
First, you need to either convert all the fractions to decimals or all the decimals to fractions, then add each pair.
0.4 + 1/2 = 0.9
7/8 + 1/4 = 1.125
4/5 + 2/3 = 1.466666...
The first one is different from 1 by 0.1. The second is different by 0.125. The third is different by 0.46666.... Therefore, the closest sum is the first, or 0.4 + 1/2
0.4 + 1/2
Answer:
3/2
Step-by-step explanation:
A ramp rises 1.5 feet <em>for </em>every 18 feet of horizontal distance. Basically the <em>for</em> is what gives it away. You could also just go with the fact that the x variable normally goes left to right (horizontal) and y goes up and down (Rises and falls) which gives you the same thing. The 1.5 feet is y and 18 feet is x
Answer:
Null hypothesis: ∪ₐ = ∪ₓ
Alternative hypothesis: ∪ₐ ≠ ∪ₓ
Step-by-step explanation:
Null hypothesis: ∪ₐ = ∪ₓ
Alternative hypothesis: ∪ₐ ≠ ∪ₓ
where ∪ₐ represents mean of sample of new cars and ∪ₓ represents mean of sample of older cars.
Using a difference in means t test will help determine if new owners tune up their cars more frequently than older car owners.