14. High-Speed Internet. According to a report by the Commerce Department in the fall of 2004, 20% of U. S. households had some type of high-speed internet connection. Suppose 20 U. S. households are selected at
random and the number of households with high-speed internet is recorded.
a. Find the probability that exactly 5 households have high-speed internet.
b. Find the probability that at least 10 households have high-speed internet. Would this be unusual (is the
probability less than or equal to .05)?
c.
Find the probability that fewer than 4 household have high-speed internet.
d. Find the probability that between 2 and 5 household have high-speed internet.

answer: can and shows the work

step-by-step explanation:

which expression represents the approximate length of bc?

step-by-step explanation:

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation:

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: