Use the rule of 3 simple
x mean 100%
3 mean 15%
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x = 3*100/15 = 300/15 = 20
hope this will help you
-6+10c
I think, reorder the terms: -6+9c+c= -6+10c
Answer:
Option C.
Step-by-step explanation:
Sampling bias is a problem during the initial data gathering step of a survey.
When the first step is wrong, then the survey cannot produce non biased results.
The problem occurs when the design of the study is wrong the data collection procedure is wrong.
So, here answer seems C, because the starting point is not selected at random in this survey.
(C) Jean wants to estimate the mean amount of money spent on clothes per week by mall shoppers. She collects data from every 10th person entering a clothing store at the mall.
Answer:
The discriminant is 49
Step-by-step explanation:
Answer:
Solving with an equality is just simply the same as solving any algebra equations. If you were given a fraction, then just multiply both sides.
Example:
4 + 
> 14
Subtract 4 on both sides:
4 - 4 + > 14 - 4
> 10
Now <em>multiply both sides by 2</em>:
× 2 > 10 × 2
x > 20
