15x = 5y divide by 3, 3x=y. I believe
Answer:
Yes
Step-by-step explanation:
First, suppose that nothing has changed, and possibility p is still 0.56. It's our null hypothesis. Now, we've got Bernoulli distribution, but 30 is big enough to consider Gaussian distribution instead.
It has mean μ= np = 30×0.56=16.8
standard deviation s = √npq
sqrt(30×0.56×(1-0.56)) = 2.71
So 21 is (21-16.8)/2.71 = 1.5494 standard deviations above the mean. So the level increased with a ˜ 0.005 level of significance, and there is sufficient evidence.
Answer:
2nd option is the correct one
The unit rat is the cost per 1 unit
cost per 1 tomatoe
3.4/4=1.7/2=0.85/1
unit rate is $0.85 per tomatoe
Answer:
x≈20.23
Step-by-step explanation:
x≈20.23
