Answer:
<h2>A . 6</h2>
Step-by-step explanation:
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
8 %( When we round off to the neaerest tenths we get 10%)
Step-by-step explanation
4/50*100
=4*2
=8%
The numbers are 4,8, and 14 because 4+8+14=26 an 4x2=8 and 8+6=14
Answer:
= 4
Step-by-step explanation:
There is a common ratio r between consecutive terms , that is
r = - 20 ÷ 4 = 100 ÷ - 20 = - 5
This indicates the sequence is geometric with nth term ( explicit formula )
= a₁
where a₁ is the first term and r the common ratio
Here a₁ = 4 and r = - 5 , then
= 4