Is how many countries are in North America a statistical question

Determine the slope of a line parallel to the line defined by the equation y - x = 5? Type a numerical answer in the space provided. Do not type spaces in your answer. If necessary, use the / key to represent a fraction bar.

In formulating hypotheses for a statistical test of significance, the null hypothesis is often A) A statement of "no effect" or "no difference. B) The probability of observing the data you actually obtained. C) A statement that the data are all D) 0.

Find the result when 150 is decreased by 15%

1) The price of a certain brand of coffee goes from $8 a bag to $10 a bag. What is the percent of change in the price? Show All Work Is the percent of change a percent of increase or a percent of decrease? Explain.

Simplify the sum. (123 + 42 + 7) + (33 - 122 - 10)

Find x in the equation x² - 7 = 4x + 5

What is the difference? 1/6 - 5/8 a. - 19/24 b. - 11/24 c. 11/24 d. 2

What is the mode of this data set? 41, 43, 45, 3, 11, 23, 24, 27, 29, 45, 12, 19, 22, 49, 25

The price of a book is $35.85 the sales tax is 6.5% how much is the sales tax to the nearest cent what is the total cost of the book?

Mt. Everest is 29,029 feet above sea level. The Dead Sea is 1,411 feet below sea level. What is the difference between the elevations? A) - 27,618 feet B) - 30,440 feet C) 27,618 feet D) 30,440 feet