Answer:
Combine like terms, although the provided answer is missing a "-" sign in front of the "13."
Step-by-step explanation:
Combine like terms. The -7 and -6 can be added to produce -13.
The correct result is <u>-</u>13 - 2x^2 = <u>-</u>2x^2 + 1 [Not _13- 2x² = _2x² + 1
Perhpas the initial equation is written incorrectly(?)
Answer:
The standard error of the sample mean is 0.57
Step-by-step explanation:
we know that
The Standard Error Formula is given by the formula
where:
SE = standard error
s = standard deviation
n = the sample size
In this problem we have
substitute in the formula
Answer:
1) Option C) Parameter
2) Option D) Statistic
Step-by-step explanation:
We are given the following statement n the question:
Phone-in poll conducted by a newspaper reported that 57% of those who called in liked ''real TV''.
The unknown true percentage of American citizens who like ''real TV'' is a parameter because here we talk about the whole population of Americans who like the real TV
- Parameters are numbers that summarize data for an entire population.
57% is the proportion of sample that is describing the sample of people who participated in the poll and liked real TV and thus, 57% is the statistic.
- A statistic is a characteristic of a sample. Generally, a statistic is used to estimate the value of a population parameter.
<em> I am not sure what you are asking by the options provided as the formatting has been messed up, but if you simplify the given equation you end up with: </em>
x > 2
Step-by-step explanation:
Given
58 - 10x< 20 + 9x
Add 10x to both sides of the equatoin
58 < 20 + 19x
Subtract 20 from both sides of the equatoin
38 < 19x
2 < x
x > 2
