Hello!
1. A chord is a ray joining 2 points situated on a given curve.
2. A tangent is a ray that passes through only one point situated on the curve.
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The area is 80 I may not be completely right but that is what I got
I hope this helps
Answer:
Step-by-step explanation:
<em>Step 1: Define significance level</em>
In this hypothesis testing problem, significance levels α is selected: 
, the associated z-value from Laplace table:
Φ(
) = α - 
=> = 
<em>Step 2: Define null hypothesis (</em>
<em>) and alternative hypothesis (</em>
<em>)</em>
: rate of flu infection 
= 8.3% or 8.3/100 = 0.083
: rate of flu infection < 8.3% or 8.3/100 = 0.083
<em>Step 3: Apply the formula to check test statistic:</em>
with 
is actual sampling percent, is rate of flu infection of , 
is number of samples.
The null hypothesis will be rejected if 
<em>Step 4: Calculate the value of K and compare with </em>
We have 
=>This is good evidence to reject null hypothesis.
=> The actual rate is lower. (As states)
Hope this helps!
:)
Answer:
Step-by-step explanation:
Statement is not true because
0 is not equal not 38
No x here.
I’ve found out that 80% of 796 is 636.8 and 20% of 796 is 159.2. i don’t know what else to do i’m sorry.
