Answer:
Solution = (-8,-28)
Step-by-step explanation:
deborah's playlist on her mp3 player has a variety of songs she had 21 country 18 alternative 16 pop 18 rock use the bar diagram
1 answer:
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The statistical test that would be most appropriate determine the answer the researcher is interest in knowing is a chi-square test.
<h3>What is a chi-square test?</h3>A chi-square test is a statistical test used to test the relationship between categorical variables. It is used to determine the difference between the expected data and the observed data is due to chance.
Chi squared =
Where:
= observed value
= expected value.
The researcher is interested in knowing if the response to lowering the legal age for drinking alochol (observed value)) varies by gender (expected value). Thus, a chi-square test would be used.
To learn more about chi-square, please check: brainly.com/question/14082240
Answer:
Step-by-step explanation:
The submersible is diving at a down angle of 15° along the hypotenuse AC of triangle ABC.
Its horizontal track along the surface AB is 1500 ft.
The submersible was already at a depth of 250 feet when it began the dive.
New depth = 250 + 402 = 652 ft
