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Novay_Z [31]
3 years ago
10

A researcher wants to determine if socioeconomic status (low, moderate, high) is related to smoking (yes or no). The Chi-Square

null hypothesis for this study is that socioeconomic status is related to smoking behavior.A. TrueB. False
Mathematics
1 answer:
julsineya [31]3 years ago
3 0

Answer:

The chi-square null hypothesis for the study that "socioeconomic status is related to smoking behavior" is False

Step-by-step explanation:

The chi-square null hypothesis is false because the chi-square null hypothesis states that no relationship exists on the categorical variables in a population, they are all independent of each other.

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kodGreya [7K]
Fraction=8/20 kids ate a grilled cheese at her restaurant in the last week. This simplifies to 2/5. Therefore the probability that a randomly selected child at her restaurant is eating a grilled cheese is 2/5.
8 0
2 years ago
Marco and Drew stacked boxes on a shelf. Marco lifted 9 boxes and Drew lifted 14 boxes. The boxes that Drew lifted each weighed
MrRa [10]
The correct answer is b. 14(m-8).

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8 0
3 years ago
The sum of x and 3/5 is 5/7.
crimeas [40]
We first write the word in math as x+3/5 = 5/7.  Now we cross multiply our fractions and rewrite them with the LCD of 5 and 7. Our equation now looks like x + 21/35 = 25/35.  We simplify our equation by subtracting 21/35 from both sides to get x = 4/35. 4/35 is already in lowest terms so it is our answer.
7 0
3 years ago
Read 2 more answers
Will mark the brainiest! What are the coordinates of the vertex of the graph of f(x)=−3|x−1|?
AleksAgata [21]

Answer:

well, the cheap answer is

f(x) = -3| x - 1 |  is really just  f(x) = -3| x - 1 | + 0.

now, what value of "x" makes the absolute value expression to 0?

well, let's just set it to 0 and check,

x - 1 = 0

x = 1

so if "x" ever becomes 1, the | x - 1| will turn to 0, therefore, the vertex is at   

f(x) = -3| (1) - 1 | + 0  -------------->  ( 1, 0 )

6 0
3 years ago
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choli [55]

Answer:

£140

Step-by-step explanation:

Modal is the most common value in a sample, in this case it's 140

8 0
3 years ago
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