Answer:
Step-by-step Solution:
<u>Simplify by subtracting 18 both sides</u>
- 7x + 18 > -3
- => 7x + 18 - 18 > -3 - 18
- => 7x > -21
- => x > -3
Hence, the solution to the inequality is x > -3.
Answer:
L35
Step-by-step explanation:
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Answer:
Step-by-step explanation:
Hello!
The objective of this experiment is to assess the service customers receive at the dealerships.
1) The population in this survey is:
The population is the customers of car dealerships.
2) The sample in this survey is:
The random sample taken was 20 selected car dealerships, where the customers were surveyed.
3) A parameter that may be targeted by the survey is:
To study the service the customers receive at the dealerships and if it has any influence in the customers owning or not a car of the company, one parameter to study is the population proportion of customers that own a car of the company vs the proportion of customers that are satisfied with the service received.
4) A statistic that may be used to summarize the outcome of the survey is:
The statistic to use to summarize the outcome of the survey is the sample proportion.
I hope it helps!
A is the only correct choice
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.
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Answer:
the probability is 0.4%
Step-by-step explanation:
the probability is equal to the proportion of students of X respect to the total amount of students , assuming that each student is equally likely to be chosen, thus:
Probability = number of students of X that participate / total amount of students = number of students of X / total amount of students * number of students of X that participate / number of students of X = 0.2 * 0.02 = 0.004 (0.4%)